So, since you're stuck paying $10 extra per month for "premium data services" (not that bad of a 4G tax, if you ask us), what wonders await you on the HTC EVO 4G, fueled by Sprint's next-gen network? Well, if these best-case-scenario tests we just did are any indication: everything you ever dreamed of. Of course, Sprint's WiMAX might end up stumbling up the steps of reality, but there's no denying that this is 21st century technology that's worthy of some of the excitement that's been lavished upon it. We just saw demos of Qik video conferencing, YouTube HQ (outpu