At this time, my Hack is currently usable. The last things that remains to be solved are:
1. Sound; still not working. I'm currently using a USB Sound from Behringer (from my UMX61 master keyboard which also is working fine in 10.6.2 and MainStage from Logic Studio 2.0)
2. Battery indicator. I have used the VoodooBattery from flip360 and it seems to work, but it is not accurate and is very silly on my system. It displays 100% of battery but when the AC Adaptor is removed, then it goes directly to 10% which is not right because the battery is sure to be still full.

flip360, do you have this same issue with yours? It would be great if you could share what you did to solve your problem.