As many of Windows Phone 7 users are waiting for the big update that adds important features like copy and paste for their Windows Phone, Microsoft today is pushing out a smaller update that will update the software update process itself. This will pave the way for future updates like the one that adds copy and paste and improved Marketplace search.
If you have a Windows Phone 7 device you should get a message about the update in the next few days, if you don't, you can connect your phone to Zune or WP7 Connector to install. Just make sure that you have the Zune software updated before getting the WP7 update. Check out our review of Widows Phone 7 devices at: http://www.mobiletechreview.com/smartphone.htm