I am ready to spring for an ipad and am considering the verizon wifi version with a wifi hum and a 3g att version. My question is about data usage. The verizon plan looks more expensive for less time. I wonder on the ATT plans if what 2gb of data time gets you with the ipad. Do most people find it adequate or do they run over? I just want to compare what 1gb vs 2gb gets you. Any thoughts?