Bad news for folks on AT&T, happy with their 3G phones. According to an announcement from AT&T, if the AT&T-T-Mobile deal goes through, subscribers will have to replace their phones in order to stay connected. AT&T has announced that they will be rearranging how T-Mobile’s cell towers work – what they use for 3G will be repurposed for 4G. Users will need to switch to phones that support AT&T’s 3G frequencies or upgrade to a 4G phone. It wasn’t announced if AT&T would be replacing the phones for T-Mobile’s subscribers, but they did mention that they’ve factored the cost of replacement phones into the total cost of the acquisition. But that means folks won’t be able to use their beloved phones like the G2 anymore. What do you think about AT&T buying over T-Mobile?