Once the link for the new Atrix phone is selected, the link takes the user to a content specific page on the AT&T site, which is good. The missing link here is that there is no way to continue to get more information on the phone or a “buy now” link. There are other options below the fold, but they are difficult to find. (The address in blue is actually part of an image and not a link and is not a next step in any event...)
The simplicity and directness of the email is lost on the landing page. When thinking about the customer experience, always remember not to make the user think. Make it painfully obvious at each and every step what he next action should be. The email does a good job of this, but the landing page drops the ball and maybe the sale.
Additionally, AT&T should consider personalization and segmentation to improve response rates. It is odd that the same offer and text would go to a business account and then the recipient be asked to enter a “student email address.” They have the data – they just need to use it.