Just watching today's WWDC on Apple and announcement of their latest OS Lion. I am so grateful to find out that we the WebOS users have been enjoying some of Lion's major features on our WebOS device two years ago.

Laucnhpad = Launcher
Mission Control = Cards view/Stacks
Full-Screen apps = ie. Web browser app and some others
Multi-Touch Gestures = Gestures including gesture area with advance apps switching