Clearwire isn't in the black yet, having bled about $126 million in the second quarter of 2010 -- but should the need arise for additional investment before it can turn a profit, the company shouldn't plan to knock on Comcast's door. Though it doesn't have as much visibility in the 4G marketplace as Clear and Sprint do, Comcast does actually offer WiMAX service using Clearwire's network and owns about 9 percent of it, but the cable provider's CFO says that the prospects for upping that share aren't good and that its up to Clearwire to "figure this out" -- "this" being its financial pickle. Not exactly a vote of confidence,
