All Things Digital

Those on-again, off-again talks between Sprint (S) and Clearwire (CLWR)? They’re on again. In fact, they’re so on that they’re already over. This morning the two companies announced a $14.5 billion multi-player joint venture backed by cable operators Comcast and Time Warner as well as Intel and Google.

The alliance will see the four cable and tech companies investing $3.2 billion in the nationwide wireless network that Sprint and Clearwire have been struggling–with profound unsuccess–to roll out. Comcast (CMCSA) will contribute $1.05 billion, Time Warner Cable (TWX) $500 million. Intel (INTC) will invest $1 billion, Google (GOOG) about $500 million. The new venture will be majority owned by Sprint, but it will take the Clearwire name and be run largely by Clearwire execs, among them cellular industry pioneer Craig McCaw.

For the cablecos, which have yet to settle on a clear wireless strategy, the deal is a quick and dirty way to establish the high-speed wireless network they need to compete with telcos like AT&T (T) and Verizon (VZ). For Sprint and Clearwire, it’s a chance to make their non-starter of a WiMax network viable and something happy to talk about when conversation turns to Sprint’s stock price, which has fallen nearly 60% over the past 12 months.

That said, the deal is not without its problems–top among them WiMax itself. As Craig Moffett, an analyst with Bernstein Research, explained in a note to clients earlier this year, the 2.5 GHz spectrum upon which Sprint and Clearwire are building their network isn’t nearly as good as the spectrum Verizon and AT&T just purchased in the FCC’s 700 MHz auction. “Serious questions remain about penetration through walls and windows,” Moffett explained. “Elsewhere in the world, operators have also raised questions about WiMax’s real-world bandwidth, latency and non-line-of-site coverage. How competitive the offering would be versus Verizon’s or AT&T’s planned LTE broadband service therefore remains to be seen.”

That it does–though there have been some indications that it may not be quite up to par. Speaking at an international WiMax conference in Bangkok in March, Garth Freeman, CEO of Buzz Broadband, Australia’s first WiMax operator, described the technology variously as a “disaster,” “miserable failure,” and a standard “mired in opportunistic hype.”

So will that prove true for Clearwire as well? We won’t know for some time. Building out a massive network like this will take some doing. “We’ll likely to see early trials in 2010, but a full-fledged build-out will take longer,” Clearwire CEO Benjamin Wolff said during a conference call this morning. “Building faster is a matter of logistics. The build plan we’ve laid out will be one of the largest and fastest build-outs ever done. We have the capability to do it, but it’s a massive undertaking.”

Time Warner’s AOL division posted financial results today, and while its revenue did not, as some investors worried, “fall off a cliff,” it’s clearly hanging on to one for dear life.

Revenue at the AOL unit slid 23% to $1.1 billion, with much of that decline stemming from a steep 28% drop-off in dial-up subscribers. Ad-revenue growth slowed markedly, rising just 1%. Disappointing news for Time Warner (TWX), which has been mulling the possible sale of AOL. With the MicroHoo merger on the horizon, the field of suitors for the division could narrow by two very quickly.

That said, today brought with it good news for Time Warner as well. The company reported first-quarter earnings that were largely in line with analyst expectations and announced plans to spin off its cable operation. “We’ve decided that a complete structural separation of Time Warner Cable, under the right circumstances, is in the best interests of both companies’ shareholders,” Time Warner CEO Jeff Bewkes said today in a statement. “We’re working hard on an agreement with Time Warner Cable, which we expect to finalize soon.”