Let it begin. Windows Phone 7 has officially been released to manufacturers in its final state. With a month or two remaining before devices are supposed to be launching, we'd say it’s about time. The good news is that Microsoft has been testing 7 unlike any of its previous mobile platforms (which makes you wonder what they were doing before). Using a variety of automated tests as well as independent software vendors and a select few early adopters, Microsoft has racked up millions of hours of testing, they say.

Additionally, Microsoft's Windows Phone team is announcing that the RTM contains some additional functionality that alleviates some of the complaints that we’ve seen from some of the media outlets that got their hands on earlier builds. The big news is that the People hub will only integrate those Facebook contacts that are actually people you know; protecting those of us (ok, not me) that have thousands of Facebook friends. Also, the ability to "like" Facebook posts is now available from the People hub.

Before you ask; they didn’t mention anything about Multitasking, Copy/Paste, or Twitter integration. Hit up the Windows Phone Blog for their testing numbers.