Minnow Board is described as 'The Minnow Board is Intel's entry into the hacker-space. It's a completely open-source single-board computer'. There are more than 10 alternatives to Minnow Board for Linux, Android and BSD. The best alternative is Raspberry Pi. It's not free, so if you're looking for a free alternative, you could try Orange Pi or OLinuXino. Other great apps like Minnow Board are Odroid (Paid), BeagleBoard (Paid), Banana Pi (Paid) and UDOO (Free, Open Source).