You are right, no roll-over minutes like Cingular/AT&T. Had Cingular through my employer. Finally went with Verizon on the Family Plan which does offer shared minutes. I ended up carrying 2 phones...work/home. Now my Vzn contract is up, wanted to go to Cingular since AT&T took over cuz I heard more towers and tower power and I can add it to my U-verse or phone bundle. Good to learn now that service has not improved before I switch. Besides, On-Star uses Vzn and I can add it onto my Family Plan for $9.95 with an extra 100 minutes, so may stick with Vzn for now (new car).

I thought I heard something about a common tower provider and separate phone companies. Anyone hear that? Is it likely?