The world's tiniest computer has been made even smaller. The popular Raspberry Pi has added the Model A+ which is even smaller and cheaper than the Model B+. At just 2.6 inches, the Model A+ features Broadcom BCM2835 System-on-a-Chip and 256MB of RAM, draws less power, features a microSD card slot and costs $20 ($29 plus shipping, without import fees, taxes). Raspberry Pi boards have been popular for people who are learning to code as it runs various flavours of Linux. It has also spawned a cottage industry of accessory, add-on and cases which enable it to be used in various situations. Check it out here.