Just like to add that emulator-zone obviously don't look in to the PSP scene for emulators. There's one in development called (I think) jcpsp. It's a java based emulator, and it's aparently capable of playing some commercial games (I think Bubble Bobble was one mentioned).
Lukav, they would add them once there is a release obviously, not just for news or anything. Although it just seems to be able play mostly demos, and a few commercial games partly and seems to be active. It's actually jpcsp. Look for it on qj.net.
EZ also hasn't updated the no$gba version, they still are on 2.5c (most recent being 2.6a after 2.6).