Don't mean to crash the thread, nor open one to say hi! but i just decided to signed up today after reading up and down through the forums for over 4 years
But to give some light about AT&T grandfathered dormant plan details. I went to England last year for 7 months and was able to put my account on dormant status for 6 months. I was then told I'd be charged $10 after the 6th one.
So yeah, there is an AT&T option to save your plan if you're not in the military. You just have to ask for it and att retention will make it happen. But, in my case, not knowing I was staying in England longer then the 5 months I planned, I decided to cancel my grandfathered line after no one wanted it.
So... If anyone who has an AT&T unlimited data plan and want to transfer billing responsibility to give to someone. My hand is up!
Thanks guys!