^lol well theres not much you can try atm, its pretty early and no where near "working" more of a proof of concept work
^come on cut it some slack of course there will have to be compromises, you could never replicate the dual and touch screen, but PSP screen is just about big enough to split into 2 of course not ideal, but if my PSP can play DS game, im fine with having a smaller split screen I mean at least it could possibly happen, i dont think its ever gonna be possible to put PSP on a DS so things a PSP can do : SNES NES GBA N64 PSone DS -lol
^yeh n64 is pretty much functionable and playable, games like goldeneye dont work so good, but some games work great. So definately playable ps1 is supported officially, so i dont think you even need custom firmware. But games work well. ive personally played Dino Crisis 2 on my PSP and it works pretty flawlessly