Guesstimating the total size of that business makes for good Web sport, and Reuters makes a run at it today: The news service pegs Facebook’s 2009 revenue at “$700 million to $800 million” and reports a “solid net profit, in the tens of millions of dollars,” citing two anonymous sources.

Those numbers are higher than other ones we’ve seen, but they don’t sound unbelievable. Facebook now boasts enormous size–half a billion users!–and at least three different revenue streams: Traditional display ads sold by a top-flight sales team, self-serve ads (check out this do-it-yourself tweak) and virtual goods (read: Zynga).

What Facebook doesn’t have, as best as I can tell: A magic moneymaking bullet a la Google’s (GOOG) AdWords. That may prevent the company from getting a Google-like market cap when and if it goes public. But I don’t think Mark Zuckerberg and company are complaining.

Remarkably, Nokia (NOK), which saw its share of the smartphone market decline to 35 percent from 41 percent last quarter, managed to push it back up to 40 percent in Q4. Quite a surprise considering that many expected the company’s smartphone share to fall even lower this quarter.

Anyway, on to the numbers:

Fourth-quarter net income was 948 million euros ($1.33 billion), or 26 eurocents a share. That’s up from 576 million euros, or 15 eurocents a share earned in the year-earlier period, and above consensus estimates, which called for earnings of 19 eurocents a share. Sales during the quarter fell 5.3 percent to 12 billion euros. But the number of handsets shipped rose 12 percent to 126.9 million units.

“In the fourth quarter the demand environment for handsets ended up being better than we anticipated and we took advantage of this upside,” Nokia CEO Olli-Pekka Kallasvuo said during a conference call.

The cuts, which are not part of a previously announced cost-cutting scheme, come after Ericsson posted an appalling 92 percent drop in fourth-quarter profit. The company reported net profit of $43.4 million in the quarter, down from $539.4 million in the year-ago quarter. Sales slid 13 percent to $8.08 billion, down from $9.29 billion in the fourth quarter last year.

Needless to say, Ericsson’s performance fell well short of analysts’ expectations.

Now we know why Ericsson declined to offer a specific business outlook for 2009 when it last reported earnings. That said, the company seems to believe that the effects of global recession on its business are limited so far. Investments in wireless networks apparently continue apace, econalypse be damned.

“I think we have had a decent start of the year,” CEO Carl-Henric Svanberg said during a conference call with analysts. “We continue to gain market share. We had several strategic wins, we’re doing good in managed–both networks and managed services. There are some but still limited effects from the economic recession and still I think this is not the time to be too precise and predicting but realize that this is a very unusual time.”

A few quick highlights from the earnings statement and investor call before the official release, appended below.

• Apple sold 22.7 million iPods and 4.4 million iPhones during the quarter.
• It shipped 2.5 million Macs.
• Looking ahead to the second fiscal quarter of 2009, the company expects revenue in the range of about $7.6 billion to $8 billion.
• The release includes no mention of Jobs’s health.

During a call to discuss Apple’s latest earnings, Steve Jobs and his health were top of mind. Indeed, the first question of the call centered around this very issue:

Q: Well, since I’m going first, I guess I’ll ask how is Steve and hope he’s doing well. And I just wanted to know how, if you’ll run the company differently with Tim or the same and if need be, if Tim — do you feel like you would be the likely candidate if the worst case scenario were to happen if Steve was unable to return.”

Apple COO Tim Cook: There is an extraordinary depth and breadth in Apple’s executive team. And it leads over 35,000 wicked smart people. We believe we’re on the face of earth to make great products, and that’s not changing. We believe in simple not complex. We believe in deep collaboration. We have the self-honesty to admit when we’re wrong. These values are so embedded in the company that we will do extremely well regardless of who has the CEO Job. I strongly believe that Apple is doing the best work in its history.

Also the focus of some discussion the possibility of an Apple netbook. Is Apple considering entering the sub-$500 netbook market? Cook says not right now. “We’re watching that space, but from our point of view, the products are based on hardware that’s not very powerful, software that’s not that good and cramped displays. We don’t think that people are going to be pleased with that. It’s a category we watch and we have some ideas for it, but we think the products there right now are inferior.”

Here’s the official release:

Apple Reports First Quarter Results
Best Quarterly Revenue and Earnings in Apple History
iPod Sales Set New Record

“Even in these economically challenging times, we are incredibly pleased to report our best quarterly revenue and earnings in Apple history—surpassing $10 billion in quarterly revenue for the first time ever,” said Steve Jobs, Apple’s CEO.

A few quick highlights from the earnings statement and investor call before the official release, appended below.

• Apple sold 22.7 million iPods and 4.4 million iPhones during the quarter.
• It shipped 2.5 million Macs.
• Looking ahead to the second fiscal quarter of 2009, the company expects revenue in the range of about $7.6 billion to $8 billion.
• The release includes no mention of Jobs’s health.

During a call to discuss Apple’s latest earnings, Steve Jobs and his health were top of mind. Indeed, the first question of the call centered around this very issue:

Q: Well, since I’m going first, I guess I’ll ask how is Steve and hope he’s doing well. And I just wanted to know how, if you’ll run the company differently with Tim or the same and if need be, if Tim — do you feel like you would be the likely candidate if the worst case scenario were to happen if Steve was unable to return.”

Apple COO Tim Cook: There is an extraordinary depth and breadth in Apple’s executive team. And it leads over 35,000 wicked smart people. We believe we’re on the face of earth to make great products, and that’s not changing. We believe in simple not complex. We believe in deep collaboration. We have the self-honesty to admit when we’re wrong. These values are so embedded in the company that we will do extremely well regardless of who has the CEO Job. I strongly believe that Apple is doing the best work in its history.

Also the focus of some discussion the possibility of an Apple netbook. Is Apple considering entering the sub-$500 netbook market? Cook says not right now. “We’re watching that space, but from our point of view, the products are based on hardware that’s not very powerful, software that’s not that good and cramped displays. We don’t think that people are going to be pleased with that. It’s a category we watch and we have some ideas for it, but we think the products there right now are inferior.”

Here’s the official release:

Apple Reports First Quarter Results
Best Quarterly Revenue and Earnings in Apple History
iPod Sales Set New Record

“Even in these economically challenging times, we are incredibly pleased to report our best quarterly revenue and earnings in Apple history—surpassing $10 billion in quarterly revenue for the first time ever,” said Steve Jobs, Apple’s CEO.

But that was the hand that Apple (AAPL) was dealt. And so, with its stock trading at a little over $91 in a dismal market, the company reported fourth quarter results. And lo and behold, they’re good. Very good.

Apple, which typically low-balls its earnings forecasts and then exceeds them, appears to have done so once again. The company posted revenue of $7.9 billion and net quarterly profit of $1.14 billion, quite a bit more than the profit of $1 a share on $7.8 billion in revenue it had forecast. It shipped 2,611,000 Macs during the quarter, over 11 million iPods and nearly seven million iPhones–6,892,000 to be exact. Said CFO Peter Oppenheimer, “We had a quarterly record for Macintosh sales, and we blew it out on the iPhone.”

Apple CEO Steve Jobs was even more effusive in his praise. “Apple just reported one of the best quarters in its history, with a spectacular performance by the iPhone–we sold more phones than RIM,” Jobs said in a statement. “We don’t yet know how this economic downturn will affect Apple. But we’re armed with the strongest product line in our history, the most talented employees and the best customers in our industry. And $25 billion of cash safely in the bank with zero debt.”

Not “the best quarter ever,” as Jobs is often wont to say. But one of them. An impressive showing amid the current econaclypse.

And what of future guidance? Apple is, once again keeping with tradition. The company delivered a first-quarter outlook well below analysts’ forecasts.