"A number of problems remain to be solved. For instance, the small intestine is typically collapsed, so maneuvering through it might be difficult for a legged robot. And power already is limited for the capsule cameras; precious little additional power may be available for locomotion."Though, the robot is attached to a 'swallowable' pill, when used for the Colon, it appears that the pill will be introduced through the anus. This would be far more pleasant than the current colonoscope.