I'm eligible for an early upgrade but not the full upgrade. I'm selling my phone for $200. Meaning I will essentially be paying $300 out of my pocket for the 32GB iPhone 4 (for a total of $500). Makes sense, right? Now, I'm selling my phone tomorrow so I'll be out of an iPhone until June 24th. I plan on buying a cheap $30 phone and just sticking my sim card in it. My question is: my data plan will still be there, right? even though this cheap temporary phone won't have features / or a real browser? I'm passing by an ATT store tomorrow morning to double check, but I wanted to know what you guys thought.