At this point, it's pretty obvious, the Sprint HTC Evo 4G will utilize the 4G WiMax service. The only problem is that the coverage areas for this still pretty limited to say the least. Well, Pennsylvania, your time has come. For those in Lancaster, Reading, Harrisburg and York, you are now able to snag yourself some 4G, and in case you are on the edge about the coverage in your area, Sprint is offering a 30-day guarantee. For a running list of all cities that currently have Sprint's WiMax 4G, and the planned upcoming cities, be sure to check out this thread for the latest updates. [via Sprint]