Outlook.com exits preview with 60 million active users, Hotmail UI to be retired this summer

It's been so long since Microsoft launched Outlook.com that we forgot it was technically in preview mode. Well, that ended today, at 12:01AM ET on the dot. The company just announced that the email service is no longer in beta, and that the site has racked up 60 million active users -- over a third of them Gmail converts. If you decide to join today, you'll be getting the same feature set announced last summer, just with a smoother, less glitchy experience (not that it was ever that buggy to beg...