Research in Motion happily debuted BlackBerry 10 recently (conveniently skipping over BlackBerry 8 and 9,) showing off a Developer-only handset and a few software screenshots. Now we finally get a look at the home screen and app launcher. These are likely the two most important areas from a mobile OS design and usability perspective, and the absence of information was odd. What you see above are four apps running at once. Tap one, and it'll go full-screen. A swipe to the right brings up the app launcher, which looks as you'd expect--a grid of app icons. As always, we'll keep you posted on any other new information that RIM releases as the BB10 release draws near.