First Windows Phone 7 update hits snags.

"Now Microsoft said it is looking into reports that the update is causing phones to stop working, and that it is aware of the problem. Interestingly enough, Windows Phone 7 users have to update their phones either via Zune software for Windows OSes or the Windows Phone 7 Connector for Mac using a USB cable. But these two programs may need updating themselves before users can install the new update for the phone."