Wow. Bunch of Sony fan boys in here. The DS is a much better system. Not only for innovation, but for it's great game library. I mean the only games that are really worth a damn on the PSP are the God of War games and I have heard the new Metal Gear game for it is really good.
And now the 3DS will be coming out later this year and it doesn't even require 3D glasses!
Not to mention the DS, regardless of the version, owns the market on hand held systems. Sony just need to cut it's loses and move on. The fact that the rumored PSP 2 didn't show at this year's E3 speaks volumes.