Verizon says it will light its new fourth-generation network in 2010. Executives at at&t haven't been equally specific, but Kristin Rinner, at&t SVP says "we estimate it possibly will be 2010 before the whole ecosystem is in place for us to launch." Of course, time tables can slip. Neither carrier will be overly anxious to commit billions more in capital to light networks that will be lightly loaded for some time.And they might just watch Xohm and Clearwire for clues about demand. If growth is sluggish, there will be incentive to delay. If growth is robust, they'll stay on schedule. There's still lots of work to do creating new revenue-generating applications on the 3G network.
And watching what users do on 3G networks is key. Just recently, Apple's iPhone has shown that the right device and plan can cause new behaviors to explode. And that's just on the slower Edge network. Once we start to get data on 3G use, we'll get some additional glimmers of what might be feasible for 4G.
One trend already seems clear. If carriers can get smart phones into the hands of users--by selling them at lower prices--then data plan usage goes way up. And having lots of people using data plans is about the only way we're going to figure out what things people want to do.
And since the 3G network will remain in operation, there will be a huge need to create new "data" applications that require 4G capabilities without simply cannibalizing 3G alternatives. It's sort of odd to think of 3G as a "legacy" network, but that's what it is becoming. It remains a strategic legacy network to be sure. The point is simply that 4G makes no sense unless it expands the range of new services people can use. Nobody needs another "voice and text" or "moderate speed broadband" network.
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