COBB is supposedly working to make the AP work with the 2010 model. It might just take some time.
The COBB AP is great because of the ability to easily switch maps. Outside of that, a good tune is a good tune (especially for the parts you have and your goals). The AP is going to cost a little more because you need to buy the AP and then pay for a custom tune on top of that. Also, make sure there is a Cobb authorized dealer in your area (you can search on their site) that can do a protune using their Race software. If you don't have someone in your area, that might make your decision for you