I'm sorry, but the idea of trying to cram the same UI onto laptops and cellphones is just plain stupid. Gesturing on the screen of a cellphone or tablet held in one's other hand is comfortable, doing the same on a laptop, with arm held straight out is just painful after a while. "Gorilla arm", anyone?
Do people even want to do the same tasks on a 4" screen as on a 15" one? But, then I don't get the appeal of watching a movie on a cell, maybe that's just my eyes.