Not sure if it is today only (9-11-2011) but I got it for 24.99 + tax and free 2 day shipping.
Add it to the cart to see the discount. I also tried to add other items and the price on the extended battery went up. I'll wait to get the other items.
http://www.verizonwireless.com/b2c/store/accessory?action=accessoryDetails&accessoryId=4772 4 [verizonwireless.com]