Has anyone nailed down the answer for any special "features" needed on your ATT account to ensure "4G" is enabled? One of the early hands on with the phone (I think from MarcMaiden) noted that there may be a "no cost HSPA+ feature" that needed to be on an account to get HSPA+ speeds. I know that ATT hasn't rolled out 4G in most areas, and YMMV, but since I'm picking my phone up at an ATT store I figured I might as well get it right the first time. Also, when I pre-ordered at the store they needed 2 reps and a manager to get it ordered and keep my unlimited data plan, so my confidence is low that if this feature is needed, they were able to add it. Thanks.