There is no need to be concerned about getting an Evo with soon-to-be out-dated technology. Fortunately, or unfortunately, any change over from WiMAX to LTE is a number of years off in the future. The sad state of affairs with Clear means that anyway you look at it, Sprint will not be adding much in the way of 4G from what already is out there.
I came accross the below article this would not be good for current EVO users in some areas such as Detroit do to the lack of 4G coverage also the new EVO 3D 4G would be a waste of money seeing that it would be limited to one 4G market" Clearwire wimax service" the radios do not opperate on LTE technology.
Using Clearwire technology,
Sprint -- which owns a roughly 50 percent share of the company -- launched its 4G network in 2008, years ahead of its competitors. While Verizon, T-Mobile and AT&T are just now catching up, the types of 4G technology they've chosen -- LTE and the LTE precursor HSPA+ -- are expected to ultimately be the leading 4G technologies worldwide. Sprint has had success with WiMAX-based phones such as its Android-powered HTC Evo 4G and HTC Evo Shift 4G (pictured). However, as Verizon's LTE has come online, it has become clear that WiMAX can't t keep pace. As Clint Boulton writes in a recent, positive review of Sprint's Samsung Nexus S 4G, "The Nexus S 4G is certainly faster than the original Nexus S Google launched last December on T-Mobile's network. However, I used the new Nexus after testing both the HTC ThunderBolt 4G and Samsung Droid Charge on Verizon Wireless' 4G LTE network. If you're guessing Verizon won that race, you'd be right." According to the May 19 CNet report, Prusch said,
"WiMAX to date has been a very good technology choice for us." He added, "We were able to take advantage of the speed to market before LTE was even a glimmer in anyone's eye. But we recognize the ecosystem in the U.S. will be larger for LTE than WiMAX, so we are conscious of that." Clearwire has had funding issues for some time now. For the first quarter of this year, it reported revenue of $242 million and added 1.8 million subscribers, but nonetheless reported a loss of $226.96 million. With $1.2 billion of cash on hand, the company is feeling forced to pace its retail efforts, despite retail customers being responsible for the majority of its revenue ($181.1 million of that first-quarter $242 million). Still, Clearwire will wait to make the transition to LTE, Prusch said, until the ecosystem and its technology are mature. "We are technology agnostic," he was
quoted as saying. "We don't believe that customers buy a technology. They buy fast and reliable access to a data network." Clearwire and Sprint rely heavily on one another, to a degree some analysts find problematic. While Sprint has struggled a bit to compete against the iPhone-wielding AT&T and Verizon, it has had to financially assist Clearwire as a means of looking out for its 4G network. Like Prusch, Sprint CEO Dan Hesse has hinted that LTE is in Sprint's future. Hesse told the Financial Times in July 2010 that Sprint was considering rolling out LTE alongside its WiMAX
technology. "We have spectrum resources where we could add LTE if we choose to do that, on top of the WiMAX network,” Hesse told FT. "The beauty of having a lot of spectrum is we have a lot of flexibility." In the same report, FT added that T-Mobile parent company Deutsche Telekom had considered purchasing Sprint and merging it with T-Mobile, but ultimately decided against it, given that Sprint was invested in WiMAX, while T-Mobile's 4G roadmap had it moving from HSPA+ to LTE. AT&T, whose 4G path likewise includes transitioning from HSPA+ to LTE, has since made a $39 billion bid for T-Mobile, which has enough spectrum to enable AT&T to eventually extend 4G service to more than 97 percent of the country. Yet, this is still not enough capital, T-Mobile CEO Phillip Humm has said, to enable it to follow through on its LTE plans. Clearwire’s Prusch remained positive about the company's outlook, insisting that it currently has more spectrum than anyone, and just needs to get to the point of growing its revenue organically. In December, the company sold $1.3 billion of debt to fund the continued buildout of its WiMAX network. "Our subscriber numbers are growing rapidly, and the usage stats show us that there is a desire and demand for more capacity," he said. "So we feel we are well-positioned to meet those needs. We have more spectrum assets than anyone else, and we can handle more capacity than any other carrier."