From what I have read it seems there are more or less three versions(?) of Windows 8: Windows 8, Windows RT, and Windows Phone 8.
While the difference between Windows 8 and Windows RT is clear, I don't understand the difference between Windows RT and Windows Phone 8.
The Android parallel, Jelly Bean that runs on Tablets and on Phones doesn't have any differences.
Are there any differences between Windows RT and Windows Phone 8 except for the fact that one is for Tablets (Windows RT) and the other is for Phones (Windows Phone 8)?