You've got to feel bad for the vendors at the Sign and Display Show 2008 that's going on in Tokyo right now for being totally overshadowed by IFA, but this nifty dual-sided transparent touch display from Teraokaseiko is definitely noteworthy, even if it just because it'll make future versions of Battleship and Connect 4 super fun. It's just a monochrome 256 x 120 EL-panel prototype for now, but it recognizes simple multitouch gestures like pinching, and there's definitely promise in the idea -- now if it could make it out of the Sign and Display Show and into the big leagues, we'd be all set.