Investopedia: Sprint Garrotes Clearwire

If there were anything approaching justice in the business world, Sprint (NYSE:S) and Clearwire (Nasdaq:CLWR) would be forced to stay joined at each other's hip, forever. If an investor wants to see two case studies in how companies can completely screw up a potentially lucrative wireless business, these are the companies to seek out. Now with both companies deep in a hole, Sprint has decided to bring out an ever bigger shovel, but this may ultimately be the shovel that buries Clearwire.

We'll Go Our Own Way  
Sprint and Clearwire have worked together for quite some time, with Clearwire basically serving as the 4G network for Sprint. Unfortunately, Clearwire has not done a great job with its rollout. Although the company is rolling in valuable spectrum and was an early-mover in 4G, dead spots in urban areas became an unacceptable problem, and Clearwire's geographic coverage expansion slowed to a crawl. What's more, Clearwire has bickered with its partners over rollout strategies along the way, including Sprint.

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http://stocks.investopedia.com/stock-analysis/2011/Sprint-Garrotes-Clearwire-S-CLWR-VZ-T-VOD-CMCSA-CHL-TWC1014.aspx