Things are looking up at Clearwire, its Q4 revenue came in just over Wall Street's estimates at $362 million, split between $198 million retail and $164 million wholesale -- with the latter figure up 20 percent over the last quarter. It pointed a finger at increased smartphone usage and slashed operating costs (spending only $82 million) as the reason for the bump. With this being Clearwire, it's still in the business doldrums, relying on handouts from Sprint to keep it going. It's planning to flog off around $300 million of debt to "qualified investors" as a way to ensure sufficient funding for the f
