Microsoft today announced that Windows Phone 7 has gone gold, meaning that the code is complete and being distributed to manufacturers. The team has also managed to add a few extra features after the beta stage. For instance Facebook integration has been improved, by adding filtering, wall messages and a ‘like’ function into the People Hub.

Today is the day that the Windows Phone team has been driving towards, and we’re very excited to say that we’ve reached the biggest milestone for our internal team – the release to manufacturing (RTM) of Windows Phone 7! While the final integration of Windows Phone 7 with our partners’ hardware, software, and networks is underway, the work of our internal engineering team is largely complete.

I last posted on this blog when we reached the Technical Preview milestone, and we’ve received some great feedback since then which we’ve been able to respond to and improve the smart design throughout the OS. For example, folks loved the Facebook integration in the People Hub, but they also wanted ways to filter their contacts so only the Facebook friends they really know will show up in their contact list – we’ve added support for that. We’ve also made it easy to “like” a post right from the People Hub, or quickly post a message to someone’s Facebook wall directly.