We've certainly seen a bunch of slider phones recently, but this new one from Fujitsu manages to put a new spin on the now-commonplace design. Rather than just revealing buttons when the face is slid up, it can now slide open in four directions, each revealing a separate set of buttons. It's a neat idea, although I'd have to actually try it out in person to see if it actually improved usability or just made the whole experience more confusing. That's not something I'll get to do anytime soon, unfortunately, as this is merely a concept at the moment. Oh well, I've got plenty of other things to keep myself occupied with.