A good guess. Apple usually releases their devices on the same month (a week or two late or advanced) every year. iPhones and the iPod lineup had been pretty consistent with their respective schedules. There has been talk that Apple isn't very favorable of putting iPad releases every April because the excitement for it suddenly dies down a few weeks later when iPhones come out as scheduled. So some speculate it's wise for Apple to push out the iPad at the same keynote as the iPods (September). So if this has weight, then we might get the second iPad generation on September 2011. So a calculated speculation of April or September is safe. If you don't have one yet, get it now or you'll have nothing to play with until then especially if it's September. Then just eBay it if you want a newer model.My guess they will be yearly updates in April.