Enlarge Image Raspberry Pi Foundation

The Raspberry Pi Foundation has reached a big new milestone: It has sold 10 million Raspberry Pi computers over the past four and a half years.

The low-priced ($35, £24, AU$49) device was originally intended to help teach kids about programing. As it turned out, hobbyists have also used it for a variety of creative do-it-yourself project.

"We thought our lifetime volumes might amount to ten thousand units -- if we were lucky," Eben Upton, founder of the Raspberry Pi Foundation, explained in a blog post. "There was was no expectation that adults would use Raspberry Pi, no expectation of commercial success, and certainly no expectation that four years later we would be manufacturing tens of thousands of units a day in the UK, and exporting Raspberry Pi all over the world."

To celebrate the milestone, the organization is offering a bundle with everything you need to get started. The Raspberry Pi Starter Kit includes an 8GB SD card, a case, a 2.5A power supply, an HDMI cable, and an optical mouse and keyboard, along with a copy of the "Adventures in Raspberry Pi" book.

The starter kit is available now in the UK for £99, plus value-added tax. It will be coming to the rest of the world over the next few weeks. Pricing wasn't announced, although the UK price converts to about $130 in the US and AU$170 in Australia.