Can i go from 4G to 3G, then back without changing plans?

[Daniel0418]

I have a Thunderbolt, I want to get an iPhone 4S until the Galaxy Nexus comes out, I am currently grandfathered into the unlimited 4G plan. Can I keep this plan all the way through to the Nexus purchase? Or is it because I am changing to a 3G phone I will lose my unlimited 4G plan? Does anyone know?

 

[Cyber Warrior]

Simple answer.... Yes. As long as your're locked into the unlimited data plan, it doesn't matter if its 3G or 4G.