Even in areas that on Sprint's coverage map say that I should get coverage "outdoors, in vehicles, and in most buildings", I'm usually either not connecting to 4G at all or am connecting to a weak signal that disconnects and reconnects constantly. It's very rare that I get a stable 4G signal inside a building. My next gripe with WiMax is how whenever I am driving, or even walking at a slow pace, the 4G signal constantly disconnects and reconnects. It seems like I have to be outdoors and completely stationary to even enjoy 4G. I really do love it when it works; though, since it is just as fast (and sometimes a tad faster) than my home Wi-Fi. Another suggestion I have is to make the $79.99 plan include unlimited calling. Though the large majority of my minutes used are covered under "Any Mobile, Anytime", I find myself putting off returning calls from landlines or checking my VM until after 7 PM. It's practically unlimited anyway, but I'd enjoy the piece of mind since I'm pretty sure I have a minor case of OCD. Also, what's keeping Sprint from making 3G capable of simultaneous voice and data sessions? Verizon has done it, and they are a CDMA network. P.S. Would those coverage problems be grounds to have a contract terminated without penalty? I'll most likely stay with Sprint since the only other carrier I'd consider (T-Mobile)'s handset lineup and data caps on their "unlimited" plans don't sit well with me.