Microsoft has announced that Mango, or Windows Phone 7.5 will roll out in the next week or two. Microsoft have said that Mango has been "painstakingly tuned" for every device from every manufacturer so that the update and all the new features work as planned once its pushed out to everyone. Microsoft have not given an exact date of when people can expect to receive Mango, but they will refresh the "Where's My Phone Update?" page to reflect the worldwide rollout status.
The only downside is that Mango won't be pushed to your phone over-the-air, so download the latest version of Windows Phone 7 Connector for Mac, or if you're on a Windows-based machine, Zune. Mango will also need proper firmware on the device to function as designed, so Microsoft have warned users against installing unofficial or leaked copies of Windows Phone software.