Google Inc. made a big splash last week with its new software for cellphones. But that's far from the limit of the Internet giant's wireless ambitions -- which could include running its own mobile network.

The company is gearing up to make a serious run at buying wireless spectrum, a chunk of the airwaves that can be used to provide mobile phone and Internet services, in a Federal Communications Commission auction in January. Google is prepared to bid on its own without any partners, say people familiar with the matter. It is working out a plan to finance its bid, which could run $4.6 billion or higher, that would rely on its own cash and possibly some borrowed money.

Google Has Big Plans For Mobile Phones [online.wsj.com]