[ Thanks to sjvn for this link. ]
“Mark Shuttleworth, founder of Ubuntu and the company behind it, Canonical, surprised the hundreds of Ubuntu programmers at the Ubuntu Developers Summit when he announced that in the next release of the popular Linux operating system, Ubuntu 11.04, Unity would become the default desktop interface.
“Unity is Ubuntu’s new netbook interface. While based on GNOME, it is own take on what an interface should look and act like. Shuttleworth explained that Canonical was doing this because “users want Unity as their primary desktop.”
“To make it work on the desktop, rather than on the netbook, where one foreground activity at a time is the rule, Shuttleworth admitted that Ubuntu had to “A lot of work to do around windows management.””