Just installed California Games to Picodrive. Works great. Just have to adjust sound before starting a game. Now only problem is I don't know how to play these games! Being a skateboarder and not knowing how get speed in halfpipe and surfing eats my ego.

But now it seems that now starts a new age with N900 and I can drop some of my computer projects (compaq armada 1700 as a retro game console etc.). I just have to learn to use these emulators and play games. Thanks to everyone!