There are a number of Tamagotchi-style apps for the iPhone out there, but now Tokyo-based Xtone gives us Amamiya Momo, a virtual catgirl girlfriend that lives in your iPhone, speaks to you and expresses emotions (there are English subs for when she speaks Japanese). You can use the GPS function in your iPhone to let Momo know when you’re home and when you’re out. She will act cuter in the first ca