Information: This is the latest alpha revision of GPSP on Takka's SVN. The only thing newer than this is GPSP-J, and the differences between the two are minimal. A pre-compiled version is provided with the download, but you can get the source here
Compatibility: You can exit to HBL Menu, but attempting to run another homebrew results in a crash
Ad-Hoc has also been removed (small loss). The HOME button is actually hooked in this emulator, pressing it will bring you to the menu! I have no idea how it's working, but it is...since R99, I haven't encountered the issue of crashing on exiting a 16MB ROM to the ROM list, so go enjoy your games, back to back!
Performance: Much better than 3.2. Games like Pokemon FireRed and Metroid run full speed without frameskip now, among soooooooo many others. I know your itching to hit the dl link now, so just install it and come back later, okay? k, now your back. You can now go into sleep mode and resume without any problems as well! This build is very stable for an alpha, huh?
-Frameskip (Auto Frameskip works correctly in this GPSP btw)
-Custom Key Mappings
-CPU Clock Speed Adjustment
-Support For Game-Specific Configuration Settings
-Other Miscellaneous Options
Credits: Much thanks to TragicTheBlubbering for finding Takka's SVN