Ever fancied roaming an art gallery through the eyes of a robot? For the next five days, that's the opportunity that London's Tate Britain is offering the citizens of the internet. After Dark will see four telepresence 'bots roam the halls of the gallery outside of visiting hours, piping the video feeds straight to the internet. Users will then be able to guide the devices around the exhibits for a short period of time, with optional color commentary from an art historian if you spot something of interest. Oh, and if you're thinking about using the gear to pull off some audacious art heist, be warned: get too close to the exhibits and the power will cut out. No pretending to be Thomas Crown for you.