This is brilliant news! I just spoke with the affiliate department on the phone who confirmed that all US players would continue to be tracked to affiliates and will receive an e-mail with a link to download the Microgaming software. For now, the US deposit options will be ePassporte (I was surprised at this as they are with Microgaming) and Western Union.
As far as I know, this is the first poker room to actually reenter the US market since the UIGEA was passed. This is even more significant for those of us that used to really do well on all those Doyle's Room US MGR players. Good good news.
Champagne time!