Microsoft has published this morning the final version of the Windows Phone SDK 7.1.1. You can now download it, create your applications and publish them on the Marketplace. There are two major improvements in this update. First, you can now create and test your applications for the new 256 MB devices. The Windows 8 early adopters will be pleased to see that the emulator provided by this SDK now supports Windows 8! Another good news is that you don’t need to uninstall the previous version, you can simply install the new version on the top of the previous one.