Bandai is getting ready to take a stab at virtual pets in a post-Tamagotchi world with Smartpet. Set to be released this April, a robot dog base will sell for ¥6,500 ($78). This attaches to an iPhone, which will serve as the dog's face. Sony boasts that it will have over 100 expressions. It will also use the phone's camera to watch for gesture commands, in addition to touch screen and voice input.