My wife had been asking for one for a while now (a DS I mean ;) ) and I decided to get her one because we had some vouchers for a retail shop.
What a nice little machine. I always liked the PSP but this is more fun, like the WII. I cannot say that it's better but it is nice in a different way.
Would I recommend if you have a PSP, Xbox 360, PS3 or other newer, more powerful console? Yep.... £100 is a lot to pay, but it is a nice little console. The only problem you might have is if you haven't got an Xbox 360, which do you go for? I'd say if you want GTA, it's gotta be the 360, but for things like brain training etc. the DS Lite !!!
Well done Nintendo !!!