Not to mention it folds up to protect itself, and even the non "Lite" version is by no means large and clunky, something that defines the PSP. And DS can play GBA games (Metroid Fusion!) and it has Phantom Hourglass. I like the whole sylus setup too, another thing the PSP lacks, thanks to Sony being void of imagination.
Well, I googled around for a while, and found that there is a device that can be bought for the DS for as little as $39 that allows it to play home brew (which would include the GB emulator) as well as Mp3, pictures, ebooks, and Divx files. That would make it in my opinion the singularly most useful handheld device in the history of mankind. All it lacks is a means of fast worldwide transportaion, a cloaking device, laser canons, and an energy shield that makes its barer invincible. Once they have a version that can do all that, I shall perchase it then go to live the rest of my life in the mountians as a hermit. It'll be great!