Pricing for the iPhone 3G S is now available on our website.

3G S iPhone 16GB model: $699

3G S iPhone 32GB model: $799

Is there a limit to how many I can purchase?

There is no limit.

Is the phone under warranty? 

It is but only under the Apple terms of warranty .
As per Apple's version 1 iPhone warranty, the warranty is voided if the phone is not on the AT&T network & unlocked.
We do offer our customers a repair and warranty service.

 Download Apple restore files here:

http://hackint0sh.org/forum/showthread.php?t=22056

See the iPhone unlock 3G info page here: http://www.international-orders.com/content/view/271