Lenovo has decided to unveil photos of its Pocket Yoga concept PC, an ultra-compact portable that's slim enough to slide in a back pocket. The leather-bound device, which resembles an oversized wallet, features a QWERTY keyboard and a touch screen.

Pocket Yoga does double duty as a conventional netbook-albeit one with a screen that's awfully tiny for conventional, office-style apps-or as a handheld device. A 360-degree hinge allows the display to fold all the way around to the base, thereby allowing the Pocket Yoga to function as a tablet notebook. One particularly clever innovation is the "belt" that wraps around the device. When removed, the belt become a mouse.

Lenovo isn't providing specs or other details at this time, and it's unclear when or if the Pocket Yoga as seen in these photos will ever ship. Pictures of another Lenovo semi-secret project, an Android handset, have recently appeared online as well. Perhaps the Pocket Yoga will evolve into a wireless smart phone?