It's in the books. Clearwire today officially merged with Sprint Nextel's WiMax business. As part of the deal, the Kirkland provider of broadband wireless service also raised $3.2 billion in cash from Comcast, Intel, Time Warner Cable, Google and Bright House Networks.

The company, which retains the Clearwire name, will continue to be based in Kirkland. It plans to hold a conference call Monday to discuss the transaction.

Clearwire's stock was up nearly 10 percent today, trading at $6.62. That's well below the IPO offering price of $25 per share.

Still, despite the sluggish stock performance in recent months, the deal is good news for the Craig-McCaw backed company which faced a tough road if it planned to build a nationwide wireless broadband network on its own.

Now, with the assets of Sprint and the capital infusion from Google and others, Clearwire can more quickly roll out service in new markets. Clearwire had about 469,000 customers in 50 markets at the end of the third quarter. 

Sprint owns 51 percent of the company, while exsting Clearwire shareholders will own 27 percent.