I've been meaning to post something on this for ages, but as I'm into casual gaming today it seems as good a time as any. THQ Wireless is bringing Top Trumps to mobile phones. The company is currently creating three packs based around its MotoGP, Star Wars and South Park licenses, and you'll be able to play against up to four CPU or human opponents. Apparently it'll also be possible to trade cards with other users via Bluetooth or a dedicated website. I'm not sure how this'll work though - for example, if you trade Han Solo for a Ducati 999, surely you won't be able to play your Star Wars Top Trumps properly anymore, as the Italian superbike barely featured in George Lucas' series. If at all.
Come to think of it, I've not read about this anywhere else which leads me to believe I have been the victim of an elaborate ruse by THQ's PR department. They have sent me some early screenshots, though, which I'm not allowed to print. However, I can tell you that, in a fight between Chewbacca and a Tie-Fighter, Chewie would win on Age, but the Imperial space craft would be the easy victor in Technology.
I don't know when these games are coming out.