my opinion is to cancel the text plan, and just use the data plan for instant messaging
really? when i asked the ATT booth about the iphone they said the text and data were mandatory
Do not get a text plan. Use google voice. You sign up for a gv phone number and give all your texting friends the gv number. Texting through gv is completely free of charge.
Are you really planning on rooting your phone? There are pluses to rooting, but even as a true geek I have not found the need.
Amoled screens are very nice, but you should compare by sight, not by what you have heard. Amlcd screens are also much improved since you got your zune. Are they a good? Probably not as good as a modern amoled, but I would say they are certainly great screens anyway.