Just what does Google believe? According to the Times and some analysts:

If Google succeeds with federal regulators, it could change the way millions of Americans use their cellphones and how they connect to the Internet on their wireless devices.

...

Instead of the wireless carrier choosing what software goes on their phones, users would be free to put any software they want on it.

Google believes that the cost of voice calls and data connections to the Internet may be partly subsidized by advertisements brought to users by Google’s powerful online advertising machine.

...

That vision, according to several analysts, is the reason Google said yesterday that it would bid upward of $4.6 billion for a swath of the nation’s airwaves, which are set to be auctioned by the federal government next year — as long as certain conditions are met.

AT&T and Verizon don't like it, which is in and of itself a good sign.