Read original post by Dave Isbitski at DaveDev
What a great time it is to be a Windows Phone developer! Thanks to your efforts we just hit 25,000+ apps in the marketplace! The next few months are going to be extremely exciting as we roll out the Mango update to existing Windows Phone customers everyone. Now is the time for you to get up to speed and start playing around with an early build of Mango on your own phone.