Apparently in response to Raspberry Pi enthusiasts calling for a more capable addition to the lineup, the Raspberry Pi Foundation has today gone one better and doubled the RAM available in the existing Model B unit to 512 MB, without increasing the asking price of US$35.

In a blog post published today the Foundation implies that the RAM increase transforms the Model B into a viable general purpose computer capable of running "multiple large applications" at once.

There's good news for consumers who have ordered but are still awaiting their Model B Raspberry Pi delivery: they will receive the 512-MB variant without having to take action. A firmware upgrade enabling users to access the additional RAM should be released in the next few days.

Sales of the Raspberry Pi have been buoyant since launch, with 500,000 units shipping in the first six months. Last month Pi-creator Eben Upton predicted that the millionth Pi would ship by Christmas.