I know this is a rather dumb question but, would I be able to use my 3g iphone sim card in a at&t gophone? There are times where I don't want to be carrying around my iphone and would rather carry around a cheap gophone to use. I dunno if it's true or not, but I've heard that the iphone sim is a bit different and that it may not work in the gophones. Also if this does work, would I be able to use the txt/data plan from my iPhone sim and have it work on the gophone? Thanks folks!