Designing for multiple platforms is, as always, a challenge due to so many differente parameters.
What is going to change the paradigm in user interface?
Tablets will cannibalize other products like TV sets, desktop and laptop computers.
Design for multiple platforms, with all the problems of different android OS, different browser versions..
Inmersive or tacky design? it is a interesting debate now, defenders of graphic realism vs defenders of abstraction. Same debate since the rise of Mac OSX though..