AT&T's restrictive network policies might have been behind some of the more notable iPhone app rejections in the past, but at least one major class of applications just got the green light, as Ma Bell just eased the restriction on iPhone VoIP calls over 3G. We can only assume this is the result of the FCC's renewed push for net neutrality and AT&T's argument that it's doesn't need new regulations to remain open, but -- what does this mean for you? Well, Skype on the road, for start