This will be weird. I am a deaf (-111 db) engineer who just got a new hearing aid with Bluetooth. I have hooked it up to my wife’s cell phone and it works pretty good. Now these tablets are coming out with both mobile cell and Bluetooth. I can not find any to try and want to do so before I buy one. I have been using AT&T for 50 years and might as well stay with them. They know nothing about a Nexus7 using an AT&T SIM. Does anyone know if the idea would work – a Nexus7, an SIM card, Bluetooth, and my hearing aid. Want to go this way to get “extra” data – larger screen. I am not into regular use of phones because they force me to listen. Told you it would be weird. Thanks.