checked our family plan, with 3 upgrades to the 9700 we still have the grandfathered plan with each one having the $19.99 BIS plan. When I first ordered the phone on my line the guy tried to get me to upgrade so it would use the 3G, but I told him no, we won't have 3G for a few more months so why pay for 3G we don't get, then he told me it would not work on th BB system if I upgraded my hardware and didn't switch plans. I told him I would upgrade if I needed to after getting the phone. Works on Edge fine, won't know on the 3G tell I go some place that has it, but in meantime I am enjoying the phone. It is faster. From what I have read here, looks like the old plan will work just fine with 3G. BTW 2 of the 3 new 9700's were picked up at the store.