Install this software and ask your friend: Windows Phone 7 or Android?
It's not a complete launcher program, only with this software you can try out, how the Phone 7 User Interface tiled main menu works.
You can start it normal way or launcher mode.
For Changing the default Launcher:
1. Download the "Home Switcher (for Froyo)" application from the Google Play (Android Market).
2. Menu > Settings > Applications > Manage Applications (filter to All)
The default launcher is known as "Home" or "Launcher".
Select it and then click on the "Clear defaults" button.
Then if you press the physical "Home" button it should
request what app you want to use, and if you want it as
- Android 5.0 compatibility.
- 60 frame/sec refresh.
- Launcher mode available.