If you are shopping for a cool pet app here is one you should check out. This app called Off Leash, locates all the off leash dog parks in your area. This app works along with your built in phone GPS. This app currently has over 600 parks listed in the US, and they are consistently updating more. If you find a park that has not been added, email them to add it!
Other cool apps for Pets
Pet Note Book
All Pet's Radio Player
Just to name a few cool ones you may want to download.