Filed under: WirelessEverybody is sworn to silence until the auction is over, so we won't be seeing much more information about this until it's all over in the spring of next year, but for now it's still fun to speculate. Business Week is doing quite a bit of that speculating as well, with word that DoCoMo, KDDI, SK Telecom and even China (through the T-Mobile and Global Tower invested Blackstone Group) could be chipping in a few billion here and there to spice things up for Google and friends in the 700MHz C Block auction. DoCoMo, which got burned in