To make a compatible app go full screen you again can reach for the upper bezel.

ENGADGET: Prototype dual-screened 2-in-1 Android smartpad from Imerj preview

The requirement for content to go full screen means we need new interactions for mobile that allow for effortless navigation between different fine-grained views from publishers, like Forbes, topics, like newspapers, and special views, like the newsfeed mentioned above.

FORBES: The Future of the Newspaper

The 4.5-inch screen was "sharp and bright" and its 1, 024 x 600 resolution (UMPCs go 800 x 480 on a 7-inch display) made full screen web browsing possible if you don't mind uh, "squinting" a bit with those "handy" buttons along the right-side of the case giving a quick zoom when necessary.

ENGADGET: Sony Vaio UX previewed

FM, Twitter and Facebook apps that, although fine as far as they go, highlight that these are not really applications that lend themselves to a full screen and a console.

FORBES: Microsoft Announces UK TV Alliances, Targets The Lean-Back Frontier