Meet Gameband for Minecraft: a smart wearable device that lets you play Minecraft anywhere. Just plug the device into the USB port on any computer, launch the app, and you are ready to play your favorite game. Gameband saves your worlds and backs them up to the cloud. The PixelFurnace app lets you customize your Gameband.
Gameband is compatible with Windows, Linux, and Mac computers. It is splash proof and durable. Costs under $70.