Lonely and living in the city, but don't have the patience or maturity for Man's Best Friend? Well, you could always take a TankBot under your wing. Desk Pets' palm-sized four-wheeler first whirred into our hands earlier this year at the International Toy Fair, promising a variety of play modes and iOS control. Now, the team behind the roving gizmo has finally released it to retailers' shelves, tacking on a $25 price tag and adding Android compatibility. The mini-bot operates in a trio of configurations: an auto