Urchin has in our Submit news forum released a new version of his excellent Commodore 64 emulator for the PSP, heres what he posted:
Team c64psp would like to wish PSP users a Merry Christmas with a new version of c64psp!
New features
* Multiple screen modes (with vsync on firmware v1.5)
* Full speed, stable C64 emulation (no need for PSP overclocking)
* Excellent SID emulation
* Quit key combination for firmware v2.0 users
* Memory snapshot quickload and save
* Increased game compatibility