Play, use and backup your apps to your PC using the Bluestacks android emulator. This video shows you how to set up and use it as well as some simple hacks to get the most out of Bluestacks.
Links used in this video:
Bluestacks – http://bluestacks.com
Android Market apk – http://forum.xda-developers.com/showthread.php?t=1298332
Increase storage size – http://forum.xda-developers.com/showpost.php?p=18432723&postcount=33