Well, sort of. It seems someone has managed to get System 7 running on the Basilisk II 68K mac emulator running on the Bochs x86 emulator running on a Sony PSP.
From what I've read, the PSP's battery lasts 4-6 hours provided your not running complex 3D games(then it drops to 2 hours).
Darrell Spice, Jr. [link|http://spiceware.org/gallery/ArtisticOverpass|Artistic Overpass]\n[link|http://www.spiceware.org/|SpiceWare] - We don't do Windows, it's too much of a chore