Staying tuned for reviews and info as well!
I still have my old K+DCAN cable from my 335i that I've kept in the glove box; I also hate that regular driving is 5/6th gear everywhere, or Sport mode being a bit too aggressive for regular driving. I'd be willing to give it a try if there were a few more reports on it.
Anyone know if xHP posts on any of the other model forums? Might be able to invite them over to give an intro and rundown of the changes.
EDIT - just put a request over in the main E90 thread for some info from RBT.
http://www.e90post.com/forums/showthread.php?t=1347613