Though the offer is for new subscribers only (those that already have AT&T are excluded, unfortunately), Amazon has discounted all of their AT&T devices (with the exception of the iPhone) to one penny in a special deal ending tonight at 11:59 PM. BlackBerry Bold, Curve 8900, HTC Fuze, Nokia E71x, Sony Ericsson C905a - they're all one penny on a new two-year agreement. What's more, they're crediting activation fees, so after everything is said and done, one penny is the only thing you'll pay to activate a new line on the nation's second largest wireless carrier (of course, the first bill is a big one due to proration, but that's fairly universal across all of the carriers).
While the Amazon deal is a good one, don't forget - here at PhoneDog, we offer spectacular discounts on devices as well! If you're in the market for a cell phone, be sure to check out our deals!