Robot that balances on a ball could become big

This is an example of something that is going on in a lab right now and has the potential to become a really big product. It can become:

• a robot to help professional movers transport stuff


• a robotic domestic helper for everyday tasks and for moving heavy things around


• a robot for space exploration


• a robotic waiter for serving drinks in bars and restaurants


• a game for kids


• ...

I don't know anything about marketability, cost of production and the limitations of the technology, but this can become (very) big.