Hey anyone see the new HL2 mod(??) that valve is making called Portal?
Sry i'm a bit too lazy to get a link but basically it has this gun that makes portals and you can use it to solve puzzles and what not.
I think its a pretty damn cool concept and if applied correctly, it'll make a crazy cool game.
Oh and maybe I'm not so lazy after all, heres a link to a gameplay vid: