i have an Inspire 1 on the way and it is time to upgrade the old Ipad 3 anyway. I've done a number of searches on different forums but haven't seen a definitive answer, wi-fi or wi-fi + cellular? I understand you CAN cache the maps for on site use, but I have also read a few comments that maps were not there when the pilot got to the site. I'd rather pay for wi-fi only, but if it creates any issues I'd spring for the cellular. So, do you people with wi-fi + cellular have any complaints? How about wi-fi only, do you wish you had the cellular version? Thanks!