What are you smoking? The Atrix came, from Motorola, with Webtop, a version of Ubuntu. It was a desktop when you plugged it into the dock accessory.
"The Atrix 4G was one of the first Motorola devices to ship with its Webtop platform. When the phone is placed into its HD Multimedia Dock or Laptop Dock accessories, the user can access an Ubuntu-based desktop featuring access to the phone and its applications via the Mobile View'application, integration of Android notifications into the desktop, multimedia playback through Entertainment Center, file management through Nautilus, and the Firefox web browser (along with support for Prism for the site-specific browsers used on Webtop mode).[19]
In September 2011, Motorola released the source code of the Webtop software on SourceForge.[20]"
The hack was created by Fenny from XDA, that allowed access to Webtop without purchasing the dock accessory.
Don't argue, I am right, I have an Atrix sitting in my desk at home. I am very familiar with the phone and it's hacks.