So you think that 3G network can handle video calling right now? Or we going to have to wait for 4G network? I think it can when AT&T beefs up there network and iPhone goes to other carriers to let the data traffic more easy on AT&T.... I see that evo can do this but it seems that the quik video has this werid echo going on.. I can see why apple only used wifi only.. Also this will affect data usage like crazy over network.. Will see when jailbreak comes and will have a hack to do this over 3G just don't go over your data if your cap and don't have unlimited.. This iPhone4 should of came out last year but that's apples way I just can't wait to get mine..