At the moment the Google SERPS viewed on mobiles is almost exactly the same as if viewed on a PC or laptop.
As far as I am concerned this is really pathetic and gives lie to the idea that the Gxxx algo is sophisticated. It's not, it can't even serve up different results for mobiles and PCs. We give far too much credit to the sophistication of the G algo, it's still a very basic beast.
The question I have though is do you think that G will ever be able to serve up mobile SERPS (aimed at the mobile user) in the near future.
There is a whole pile of worms in any solution to this but your ideas would be appreciated.