More info:
http://www.e90post.com/forums/showthread.php?t=139026
'not yet' for msd81 (that's us). 12-13psi. No info on power, but gains called 'ridiculous' from someone who talked to Jim. Included is a tool for building your own map.
Also, from Dinan: They blew up cars, and turbos. Maximum the driveline can take is 450tq (wheel). More than 14PSI does nothing but run the turbos out of their efficiency range, resulting in power loss without big time breathing mods. Based on their explosion results, they believe they will be pusing the limits of the stock turbos at 14psi with their Stage 3 tune.
I wouldn't expect more from Dinan without a turbo upgrade, and possibly a compression reduction.