Specifically, there are declarations buried in the iOS system files that reference “iPad3,1” and “iPad3,2.”
What does this mean: there will be two next-gen iPad models. This is interesting because currently there are three: iPad 2,1 (WiFi) iPad 2,2 (GSM) and iPad 2,3 (CDMA). So the next iPad will probably be iPad 3,1 (WiFi) and iPad 3,2 (GSM+CDMA). I’m expecting a new iPad in September. Maybe the iPad 3 will be LTE.