Best of the bunch has to be 'Metroid Prime Hunters' nice DS FPS my only serious game for the DS and a lot of fun.
But not so serious and a hell of a lot more fun that I would have thought is 'Wario Smooth Moves' for the Wii, nothing to it but it has that something that is hard to describe that makes it different. So many silly little games coming at you so fast blink and you have missed it LOL.
Lastly Red Steel, heard nothing but bad about it, but I don't think it is that bad. OK it is not that amazing either but does allow a little more variety on the Wii until a good FPS comes along.
Must remember I have a 360 LOL but there is nothing new game-wise that I can see that interests me so far this year