[ Thanks to kiterunner for this link.
“Firefox’s Panorama Like Workspace Manager in Ubuntu Unity
Mockup This new mockup has been created by deviantart.com user
BigRZA who was responsible for the awesome Tweak Center mockup as
well which got rave reviews from our readers. In this latest
mockup, he intends to recreate Panorama feature of Firefox 4 as a
new workspace manager for Linux/Ubuntu. Take a look.”