The Raspberry Pi is the Arm-based, Linux-running, teeny-tiny single board $25 computer that is fast becoming the darling of geeky hobbyists. But what, one may ask, can you actually do with it? A lot, actually - it's one of those basic things that is so flexible that it just boggles the mind - it's like asking "what can you do with a wheel"? Any 10-year-old can probably come up with a dozen things in one afternoon. So Mashable has a list of (arguably) the top five things to do with the little bugger.