You don’t know, you haven’t heard? It’s Yabause version 0.9.10 — the SEGA Saturn emulator for your PlayStation Portable. Now before you get all excited you should know a few things:

1. (Quoted from the readme) PSP support for Yabause is experimental; please be aware that some things may not work well (or at all), and in particular there’s no configuration interface yet.
2. You must obtain the SEGA Saturn BIOS yourself; a simple Google Search will turn that up.
3. You need a PSP-2000 (Slim) or later; Yabause needs the extra ram.

I tried it; it’s semi-functional in terms of loading CD images and playability. Things get choppy, but nonetheless, Yabause clearly demonstrates the possibility of SEGA Saturn emulation. Check the compatibility list here.

Download: Yabause 0.9.10

- source: yabause.org

For all the SEGA Saturn skeptics out there, namely here in the comments — this is for you! Introducing Yabause, an early test version which is developing into a full-fledged SEGA Saturn emulator for the PSP. Yep, it is possible after all.

Installation follows the same steps as any other homebrew app or game. We have a 1.50 kernel compiled version, as well a build for custom firmwares 3.xx. You will however need to obtain the SEGA Saturn BIOS by using those resourceful Googling skills you have. Once found, rename to “saturn.bin” and copy the 512KB BIOS file to your memory stick, under PSP/GAME/yabause or PSP/GAME150/yabause — depending which version you downloaded.

Download:
Yabause 0.9.1 fw 1.50
Yabause 0.9.1 cfw 3.xx

- source: pspgen.com

Good lookin’ out David Roth