Just wanted to let you guys know that the Neo Geo emulator for the playbook just got updated with multiplayer support!!!! You can now play your favorite neogeo games with a friend on your playbook!
http://forums.crackberry.com/showthread.php?t=752601
For an easy setup of the emulator just download the pack I posted on that thread and follow the simple instructions. The pack contains 35 neogeo games like metal slug 1-5 and all the files you need.