Well its about Damn time that Microsoft stayed listening to consumers. The Metro UI is a unique concept that is designed to easily flow from Mobile to Tablet to PC. The problem with the interface in my opinion, (the main problem anyways.) is that it only works well for touchscreens. The majority of laptops and PCs Don’t have this functionality. With this update the metro UI will be disabled by default.
Check out the article above for more details about the update to come to Windows 8.