Android: We've featured other Android home screen replacements before, but if you find the traditional home screen too cluttered, this Zune-like launcher is a simple, pretty alternative.
The Zune interface is pretty popular for its good looks, and if you'd like the same attractiveness on Android, Zune Home is a pretty good replacement. It's just a simple, customisable list of apps from which you can launch just about anything. It's a bit confusing when you first launch it, though — none of the items on the list have assigned apps; you have to assign them yourself. Just hit the Apps section and long press on an app to assign it to a menu entry. If there isn't an appropriate entry, you can also pin it to your Quicklist, which will put the app's icon on the left side of the screen.
Other than the app menu and a convenient weather reporter in the corner, though, there isn't a ton to this launcher quite yet — the developer is still working on it, so it's likely we'll see more features coming soon. If you want to simplify your home screen, though, this is a pretty easy way to go about it.
Zune Home is a $US0.99 download for Android devices.