AT&T offers the Apple iPhone 4S 16GB now on sale for $99.99 with free overnight shipping, a $100 discount from the original listing.  Available in either black or white.  This is the best deal we've seen currently directly from AT&T .

To get this deal, select "Smartphones" under "Cell Phones & Devices" and search for the iPhone 4S.

The Apple iPhone 4S features a dual-core A5 processor (same as iPad 2) with advanced graphics, iOS 5, Retina display, an advanced 8MP camera (records in 1080p), GSM compatibility, Siri Voice Recognition, 8 hours of 3G talk time, and more.