Smartphones have orders of magnitudes more computing power than Arduino. Arduino is a nice learning platform but you will reach its limit rather quickly and hav

Smartphones have orders of magnitudes more computing power than Arduino. Arduino is a nice learning platform but you will reach its limit rather quickly and have to start over with a new more expensive platform. Smartphones have enough power for your robot to evolve to using advanced control algorithms, advanced kinematics and mechanical modeling, advanced image processing (computer vision), speech recognition, text to speech etc... I agree that maybe this 'Romo' project is too simple to do much. I am not a fan of these 'graphical programming' platforms but it's just a start. I think using mobile phones for robotics has much more potential to advance the state of the art than Arduino except maybe as part of that Android-Arduino combination Google did.