Omega Supreme said:All systems rely on their exclusive titles. How many of that list for the PSP can be bought for other systems? How many of the DS titles?
That doesn't change the fact that they are good games. Just because you can play a similar game on the console doesn't make it a bad game for handheld. Like the poster above me said, only the sports games are even close to ports (I don't really know how else you can make a sports game), the other PSP games might have similar gameplay, but compeletly new content.
The only games I see that are 100% original on the DS are Kirby, Phoenix Wright, Trauma Center, Wario Ware and NintenDogs.