So I just upgraded to a new iphone 4 and was told that my old 3G would essentially function as an ipod after deactivation. However, it seems as if the 3G has now slowed down to a crawl and barely responds to anything. It reports no service (obviously) and still recognizes my wireless, but otherwise takes forever to respond to anything. A hard reset didn't really change anything and I was wondering if there is something I'm missing. Do I need to physically remove the sim card? Any help is appreciated. Thanks.