It appears that PhatNoise changed their forum software the other day. On their new board, there is an announcement that they are relaunching their website at the end of the month. They also say that there is going to be an availbality announcement at that time that will make a lot of people happy.
Hopefully, they will have another batch of PhatBoxes to sell (including BMW adapter kits) or something else that will allow use of the Kenwood MusicKeg with the OEM BMW headunit.