I'm trying to decide if I should up my monthly plan for the next few months in hopes that I'll be eligible for the next iPhone upgrade at the full discount. Last year, I was eligible for the full upgrade on launch day (after AT&T revised the dates). However, when I check my eligibility now by dialing *639#, it says I'm not eligible until 11/20/2010. I lowered my rate plan this past year and also now get a discount on the rate plan and data plan. So, I'm trying to determine if the lowered plan with discount is what's causing the 17-month upgrade eligibility instead of last year's 12-month. So, what's your eligibility date? Does anyone have a 12-month eligibility and upgraded last year on launch day? Thanks!