It depends on how you use it. I am not using vodafone. But on Telecom XT, with corporate email, personal email, some apps like Kaixin, Facebook, Safari, Google Map, 250 MB is sufficient.
BTW, Voda 3G network sux. My friend in Auckland bought the iphone 4 with a Voda plan. He can't get a signal at home. He is like me having a Telecom XT work phone. So he replaced his micro sim with the XT micro-sim. He put both cards side by side in Auckland CBD and Suburb. Guess what, Voda sux big time.作者: tmd 时间: 2010-10-5 14:53:05