Bot that buys dirt-cheap goods on TradeMe and tells Twitter what it's buying/bidding on. Seems we need a Rule 38: if software is described in an XKCD comic, the chance of it being brought into reality approaches 1 as t approahces infinity.

"I thoroughly enjoy the more real time nature of these diary fragments popping up among my friends’ updates. It’s easy to picture @samuelpepys conducting his business and pleasure, travelling around London — from his home near the Tower of London to Deptford to Westminster — when he’s updating you on his progress during the day." Phil on the joy of small updates from things that aren't (quite) people.