The 1st WiMAX (802.16e 4G) Android device, the HTC Evo, goes on sale today on the Sprint Nextel network for $199 with a 2-yr contract. You can also purchase it from retailers Best Buy and Radio Shack.
The Evo has had a very positive reception since its unveiling in late March of this year. While the speed advantages are significant over current 3G networks (see video below), there is an additional cost of $10/month. There is one additional benefit which AT&T and Apple have touted with their network and iPhones and that’s the ability to talk and use data services simultaneously. Expect this distinction to quickly fall away for Verizon and Sprint on their newer devices.
Here is a video that demonstrates side by side how the Evo performs on a 4G network versus a similar device on a 3G network: