The Segway was going to revolutionize the way we travel medium distances. It didn’t. Now, there is a new personal mobility device that wants to pick up where the Segway left off. Karen Day at CoolHunting reports that the Solowheel will be available in the US in March. A “self-balancing electric unicycle,” the Solowheel uses gyroscopic technology. Its 1000-watt rechargeable lithium-ion battery powers lasts two hours and can recaptures energy when going downhill. The portability of the device gives it a leg-up on the Segway, which many avoided because of the whole issue with “where do I park this…