I'm at a conference in Vegas and we're doing software demos in a large meeting room with our 3 3G iPads. AT&T is so unreliable we have all 3 using my 1 Verizon mifi for Internet access as the 3G coverage is so unreliable here. I though Scottsdale, az was bad... The service is even worse here! For what it's worth I started out my trip at the M resort for a few days south of the strip and the service was almost non-existent. I then moved to the Wynn for the conference days and although the service is somewhat better it's still pretty unreliable, particularly indoors.