iPad 3G AT&T severly scales back limits on You tube. When you use the iPad 3G AT&T has blocked Skype from working with the 3G and other Apps as well as YouTube Videos
iPad 3G ATT SEVERELY SCALES BACK LIMITS YOUTUBE CELLULAR DATA CONNECTION (http://www.youtube.com/watch?v=xnHsaYk4eJ8#lq-lq2-hq-vhq)