“The BlackBerry PlayBook is expected to begin shipping in the U.S. in Q1,” RIM said in an email statement.

And there you have it.

Meanwhile, the device is garnering mixed reviews at CES. After some hands-on time with it, Engadget described the PlayBook as “blazingly fast, comfortable to hold, and intuitive to use.” Gizmodo liked it as well, talking up its hardware, responsive display and UI. “RIM’s got something here that could really stand on top of the bajillion other crappy tablets that are going to launch this year,” the site concluded. “They just have to take it the rest of the way.”

Wunderlich Securities analyst Matthew Robison agreed. “RIM’s PlayBook strategy [is] exceptionally compelling— pending successful execution,” he wrote in a note from CES. “The company’s ace card in tablets is sure-fire security for IT departments who loathe adding another piece of client software to enterprise networks.”

But others, like Wedge Partners analyst and RIM bear Brian Blair, were not so impressed. Though he praised the device’s sturdy build and crisp screen, he slagged its lack of native email and calendar support.

“There is not a built-in e-mail program that we saw, nor is there a calendar: arguably the two most critical features of a Blackberry,” Blair said. “Calendar and Email are only available, if the PlayBook is “tethered” to a Blackberry. Short of that, users need to use the browser for e-mail and calendar.”

And, admittedly, that does seem silly. Unless you’re a CIO. In which case, you probably prefer to push data (and remotely wipe it, if necessary) from one device instead of two, and appreciate the gesture.

Still, Blair came away with the impression that the PlayBook isn’t yet fully baked, and to be fair, it isn’t–after all, this is a pre-release device.

“We know this is an early build and that bugs are being worked through over the next couple of months, but nearly every feature we tried on our demo unit was having problems,” he concluded. “The video player froze and the games wouldn’t play. The only thing that worked was the ‘Coverflow-like’ scrolling of the different applications, which the device did with ease.”

But as Blair himself observed, a lot can change in three months. And presumably RIM is doing its damndest to ensure that it does–before Apple debuts the iPad 2, which will undoubtedly become the new standard against which all tablets are compared.

In the meantime, here are a few PlayBook promo videos RIM released in conjunction with CES.

We like competition, as long as they don’t rip off our IP, and if they do, we’re going to go after anybody that does….We will not stand for having our IP ripped off and we’ll use whatever weapons we have at our disposal [to make sure that doesn't happen]. I don’t know that I can be more clear than that.”

– Apple COO Tim Cook’s on the company’s iPhone intellectual property

Turns out that when Apple (AAPL) COO Tim Cook said the company would use “whatever weapons we have at our disposal” to pursue anyone who “rips off” Apple’s iPhone intellectual property, he had a very specific weapon in mind: United States Patent #7,479,949. Awarded just days before Cook made that statement, the vast 358-page patent describes the touchscreen, graphical user interface and technologies that define the iPhone user experience, including at least one that may define an element of the Palm (PALM) Pre’s as well. From the patent abstract:

A computer-implemented method for use in conjunction with a computing device with a touch screen display comprises: detecting one or more finger contacts with the touch screen display, applying one or more heuristics to the one or more finger contacts to determine a command for the device, and processing the command. The one or more heuristics comprise: a heuristic for determining that the one or more finger contacts correspond to a one-dimensional vertical screen scrolling command, a heuristic for determining that the one or more finger contacts correspond to a two-dimensional screen translation command, and a heuristic for determining that the one or more finger contacts correspond to a command to transition from displaying a respective item in a set of items to displaying a next item in the set of items.

Also described in the patent, a gesture area separate from the iPhone touchscreen UI itself:

In some embodiments, in addition to the touch screen, the device 100 may include a touchpad (not shown) for activating or deactivating particular functions. In some embodiments, the touchpad is a touch-sensitive area of the device that, unlike the touch screen, does not display visual output. The touchpad may be a touch-sensitive surface that is separate from the touch screen 112 or an extension of the touch-sensitive surface formed by the touch screen.

A touch-sensitive area of the device that, unlike the touchscreen, does not display visual output. Hmm. That sounds awfully familiar, doesn’t it? Where have I heard that before… Oh, I know, in Palm’s announcement of the Pre.

Palm Pre features include the following:

…Gesture area, which enables simple, intuitive gestures for navigation”

Makes you wonder what’s going on in the bowels of Apple legal right now, doesn’t it? Palm legal, too. The company could certainly challenge the validity of the patent if it chose to.

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• Palm to Apple: Bring It
• Apple COO: “We Will Not Stand for Having Our IP Ripped Off”