Google's Groupon groping reveals the shifting power in the web world

"Its mobile and OS efforts essentially amount to parallel operations in the company; neither one is likely to become Google's new core, but more to layer on what that core is."

It's only partially true today - Android is good extension of several google products, like GMail, Maps and Calendar and they need to keep pushing that and making it better - for example the music store that'll automatically sync everything shown off at Google IO.

They seem to forgot Jaiku