An anonymous reader writes: Sprint will begin selling the first of two WiMax smartphones announced for this year on June 4. The Android device promises blistering download speeds for a relatively modest price, it can be a Wi-Fi hotspot, it carries two cameras, one of them with 8 megapixels, and it delivers video output at 720p on a 4.3” display. Oh, and you can use it to amke phone calls, too. The HTC Evo is smartphone overkill at its finest. The question is: Is it good enough? Do you really want a WiMax phone? Will consumers bite and finally give Sprint a glowing flagship device?