Apple Preview: New Looks for the Mac, the iPhone and for iTunes

Although the full details on Lion aren’t due to be spilled for another couple of hours, it is worth remembering that Apple has already given a preview of some of what to expect from the next version of Mac OS X.

Lion got its first mention at a “Back to the Mac” event last October. With Lion, due to arrive later this summer, Apple is trying to bring to the Mac several of the things popularized on the iPad, including full-screen apps, easy switching among programs and greater support for multi-touch gestures. It will also feature the Mac App Store built in, though Apple has already released this as an add-on. Other features, including auto-save and easier access to old versions of documents are detailed on Apple’s Web site.

Of course, the cat isn’t completely out of the bag. We still don’t know the full feature list, nor when to expect the software to arrive.

Less is known about iOS 5, the next version of the operating system that powers the iPad and iPhone, though that is also due to get a preview later this morning when CEO Steve Jobs takes the stage to kick off Apple’s Worldwide Developer Conference. Popular rumors include improved notifications and perhaps greater Twitter integration.

Finally, Apple has also promised to talk about its iCloud service, which is expected to offer cloud-based music storage, among other features.

Of course, AllThingsD will have live coverage starting in just a bit, so keep it here for all the latest from WWDC.