I'm so confused and fed up right now. Yesterday I exchanged my less-than-a-week-old HTC Aria because we (nor AT&T) couldn't figure out why my phone was telling me that I was, without a doubt, connected to my home wifi but yet anything I did was charged to my (not unlimited!!) data plan. I was always triple checking to make sure that before I downloaded/sent anything big, the wifi symbol was up. they couldn't figure it out. so since the first Aria came damaged (touchscreen wouldn't work) i decided to go with the Samsung Captivate. Immediately upon setting up wifi when I got home I saw what the one tech support lady had mentioned - that the wifi symbol in the in the status bar should *replace* the 3G symbol (it hadn't before). Ok, all good...we could see my phone on our wifi, that it was logged on. This morning, I look at my data plan and to my shock....I see more activity!!!! I hadn't left my house. I hadn't ever gone off wifi. It's showing up on my data plan as wap.cingular. I downloaded a Data Activity widget for the phone, and all it shows on that is wifi use and cell use. I don't know what to do, but I'm pissed. I mean, I upgraded to a more expensive phone. now I'm going to have to upgrade to the more expensive data plan just bc this can't be solved??