Probably the biggest thing is that Lammania is now officially open to everybody. Here's the word from Patience:
We're pleased to announce that the DDO Unlimited Beta is now open to all players with active DDO subscriptions. If you have a paid DDO account in good standing you are no longer required to have a VIP key to access the Lamannia server or post on the beta forums! Your account will convert to VIP when DDO Unlimited launches. Enjoy the rest of the beta, and thanks for playing DDO!
Cool! Get in and check it out, if you are of a mind to see what's coming in DDO:U.