Homer has released an updated version of RIN, a Gameboy and Gameboy Color emulator for the PSP. The core is based upon Mr. Mirakachis RIN. Changes:

Savestate thumbnails

Local background selector (Press X while selecting a bmp file)

GB Type (Allows you to select which type the rom should be played as)

GB Color (Select which colors the GB rom should have, instead of grey)

Local Menu Color Configuration

Both option in Key mode

Each rom has it’s own configuration file

http://xn--stjrna-dua.net/psp/rin/