For those of you that have a PSP: Minecraft clone.

Still a work in progress, only seems to have "creative mode" right now. Still impressive, and hopefully the guy will keep updating.

If you don't have custom firmware you need to download the SIGNED version. Either way throw it in your PSP/Games/ folder and you should be good to go.

http://drakon.ixan.net/phpBB3/viewtopic.php?f=4&t=21

or

http://pspslimhacks.com/lamecraft-rev-98-signed-a-psp-minecraft-clone/

haha they banned me from gamefaqs for posting this and ignoring the warnings of the moderators (who don't seem to understand that it's not illegal and doesn't require hacking of your PSP.) Worth it as long as a few people saw. Don't bother pming me on there anymore, but feel free to keep making threads there to advertise our server.