Go here and scroll down to see all the features of this Kindle including a comparison to the other models. The biggest bonuses I see of this model are the larger screen (this one is 9.7 inches versus 6 inches diagonal) and it comes with free 3G wireless (no contract!) so you can download books anywhere at any time. Love that!
When Amazon discounts Kindles they often sell out before the day is over. If you’re interested in this deal, run over and grab it before it’s gone!