I have a soft spot for Windows Phone, because it's clear Microsoft has been trying very hard to catch up. Internet Explorer 9 and 10, for example. They've put a lot of effort into those. Windows 8 was a complete rethinking of user interaction with Windows. And Windows Phone 7 was a complete rethink of Windows Mobile. I hope they get something for their efforts.

And the default Android. It's Samsung's UI layer that looks too much like the iPhone.

Both the Nexus S and the Galaxy Nexus which use the default android UI were found infringing as well.