I had a look at windows mobile 7 phone and I was hooked at the user interface. Since then I was looking for something that could change my Galaxy 3 home screen to windows 7 tiled home screen. And then I found Launcher 7. It is more than decent at giving the feel of windows 7 user interface.
It is still a long way ahead for this app. But it will not disappoint the user.
It is a Windows Phone 7 style launcher for Android.
Unlike other current WP7 launchers (Windows Phone Android, Metro UI), this one allows you to properly modify your start screen. Just long press on a tile and drag tile where you want!
Point your androids barcode reader to the code to get it.