The PSP needs MAME!

The psp is missing something huge and that is a mame emu for the psp. Sure we already have mame emu but no offense and I couldn't do any better but to the coders it sucks. We need a mame emu that can be compatible with old arcade classics such as the Simpsons arcade and on and on. There is only one coder I can think of and its NJ but he is not coding anymore. Anyways just wanted to express my opinion about what the psp needs and hope it sparks some ideas.