Will the AT&T Unlimited Data Plan still be honored for iPhone 3GS users choosing to upgrade to the 4S?

Call AT&T and ask or look on their website and see if they address this.

Get your upgraded iPhone just keep your current plan. if you absolutely must have the new iPhone, you can buy it for 650 from apple and simply change sims. all your account information is on the sim card not the phone its self. as long as you keep the same card and plan, you will be fine.

Grandfathered means grandfathered. Changing phones does not affect the grandfathered unlimited data plan.

It makes no difference if you order the iPhone from Apple or ATT. Apple has access to the very same info as ATT in this regard including upgrade eligibility, etc.

YES!!! I contacted AT&t about it. They stated that I can keep my unlimited usage plan when I upgrade. Don't know about ordering through Apple. But I will guess that Apple only sells the phone. AT&T is the data plan you use. As long as you stay with AT&T I think you will be alright.

The same AT&T rep stated that the 4S will not be available until Oct 14th. Pre-orders will ship out on that date via UPS with a 3-5 day standard delivery time. I guess you can request an expedited delivery. But it still will not ship before Oct 14th.

If you pre-order tomorrow, pre-orders placed on the first day that pre-orders are accepted at a minimum are set to be delivered no later than the release date. Pre-ordering from one or the other will not change this.

Apple does more than just sell the iPhone - just as Best Buy does more than just sell phones.

Existing subscribers can change their data plan or messaging plan when ordering or purchasing an iPhone from Apple, and new subscribers can get approved with ATT when ordering or purchasing an iPhone from Apple.

Last year with pre-orders placed on the first day, the iPhones were delivered no later than the release date - with some exceptions for various reasons - at least for pre-orders placed with Apple. My iPhone 4 pre-order last year placed on the first day pre-orders were accepted was delivered a day or two before the release date.

However, AT&T has announced that they will start throttling "unlimited" data plans in the near future - that is, slowing down your connection once you exceed a certain threshhold each month. They have not announced what that threshhold is.

The iPhone 4s deliveries begin friday. they may take a bit longer to make it to your door.

However, AT&T has announced that they will start throttling "unlimited" data plans in the near future - that is, slowing down your connection once you exceed a certain threshhold each month. They have not announced what that threshhold is.

If i am correct then, if you have not accepted this condition, you may be able to get out of your contract free?

I'm getting that information based on first hand experience - my pre-ordering of the iPhone 4 last year on the first day pre-orders were accepted. My iPhone 4 was delivered a day or two before the release date. My pre-order was placed with Apple, not ATT.

If there were no chance to receive a pre-order on the release date, there wouldn't be much reason to begin pre-orders a week before the release date.

I bought my iPhone 4S at my local Apple Store and the ATT unlimited $30 data plan is grandfathered in. If you elect to abandon the plan and go with the $15 or $25 data plans, you can't go back. I kept my unlimited data plan...worth the $5.

Me too. I had been using the original iPhone and when I upgraded, I was offered the one-time-only opportunity to get unlimited data (which I chose). For me, it was an extra $10 per month because I had been on such an old plan it was only $20 per mo.! But as you said....well worth the small increase.

Speaking of throttling, I received a text from AT&T a few days ago that I ws in the "upper 5%" of data users. Yesterdy they reduced my speed from about 2.5MBPS to 0.09MBPS. I have been calling and fighting with them since. They say that I still have an "UNLIMITED" plan, just slower, untill my monthly billing cycle resets. I am only 9 days into that cyle. 22 days to go at 0.09MBPS. It is now a limited plan. I can't use Netlix, I can't use Pandora or Youtube. I am now limited. If you are on a teired plan and go into the upper 5% you are not throttled, you are just charged more. It's not right.