Since yesterday’s announcement of AT&T’s “generous” upgrade deal on the iPhone 4, many U.S.-based iLounge readers have expressed confusion over whether or not they would be eligible for the base $199 for 16GB and $299 for 32GB pricing. So we’ve put together this handy guide that will take you through the process of finding out your upgrade eligibility, and how to translate the response into real world iPhone 4 prices.…
