iPad is the existence of a large, remote controlled spy tank, we've got some rough news for your bank account. Brookstone is offering up the Rover App-Controlled Spy Tank, an iPad / iPhone / iPod touch-controlled toy tank that can capture audio and video and send it back to your iOS device. The tank can be controlled at distances of up to 200 feet and works around walls. The app is available as a free download and the tank will run you $150. That price includes six AA batteries, but apparently won't cover therapy for distressed house pets.