Clearwire

Cash-strapped wireless carrier Sprint may need to tap capital markets or draw on its credit line, investors are warned.

Sprint today agreed to pay Clearwire $1 billion for the right to wholesale access to its WiMAX network over the next two years.

When wireless service provider Clearwater announced widening losses early in November, the company warned that uncertainty about its ability to obtain sufficient additional capital "raises substantial doubt about our ability to continue as a going concern.”

High-speed wireless network provider Clearwire needs an infusion of cash or it may run out of money next year, the company says.

Clearwire recently released results of its LTE trial network in Phoenix, showing that the test network achieved speeds approaching 100Mbps. That's ridiculously fast compared to the current speeds of between 3 and 6Mbps on most commercial networks. Even taking into consideration that this was a test network without any sort of user load, it's impressive. Verizon's LTE network is expected to sustain speeds of between 8-12 Mbps by comparison.

Clearwire has expanded its portfolio of personal hotspots to include the iSpot, which has been designed to attract Apple users, the operator said on Wednesday.

Clearwire's WiMax mobile broadband will come to 19 more markets across the U.S. this summer, with partner Sprint Nextel reselling the service in all those areas and partners Comcast and Time Warner Cable coming on board in some of them.

Clearwire chief commercial officer Mike Sievert gives us the lowdown on the company's plans to build out its WiMAX network this year and its potential future plans to upgrade to the "WiMAX 2" standard.

Clearwire, the foremost flag-bearer for the WiMax flavor of 4G wireless service worldwide, has launched a free WiMax network for the developer community in Silicon Valley.

WiMax operator Clearwire will use software from Mformation to activate and upgrade client devices in the field.

Complaining about slow service and an unreasonable early termination fee, a small group of people are trying to bring a class-action lawsuit against Clearwire.

High speeds, freedom from carriers' app limitations will be chief advantages -- when broad WiMax coverage finally arrives