I have a 3GS with a Go Phone (perpaid) AT&T sim card, and have also modified my APN settings to be able to utilize the added 100MB data package. If I look at my account history on the AT&T website I see a bunch of entries for GPRS. Are these for accessing data over the 3G network? Or does this mean it's using the Edge network? If I recall I've only ever seen the "3G" icon and never the "E" icon.