Amazon.com: GoCube 2x2 - The First Ever 2x2 Connected Cube That Allows You to Learn How to Solve The Cube! App-Enabled STEM Puzzle That Fits All Ages and Capabilities. Free App. :
With the connected cube, I learned how to solve a Rubik's cube | Engadget
App Cube is a geeky take on Rubik's Cube | Ubergizmo