The new iteration of the tiny but powerful but cheap Raspberry Pi is the US$35 Pi 3 Model B. Despite being exactly the same price as the previous version, the RPi 3 is 50 per cent more powerful, and for the first time includes both on-board Wi-Fi and Bluetooth 4.0 Low Energy, making it even more useful for those hobby projects or as a cut-rate Linux terminal or media centre box.
You can buy the Raspberry Pi 3 Model B for around $62 from both Element14 and RS Components. Both Element14 and RS Components offer free delivery; the list price is $56, but you'll have to add 10 per cent GST on top of that if you're buying as an individual rather than a business.
The Pi 3 Model B is out of stock at Element14 thanks to some extremely popular early orders, but you can find it in stock at the moment through Little Bird Electronics. Both Element14 and RS Components have some great video introductions to the Pi 3, including an unboxing and a quick review.