Robots

Roomba and Scooba:
Floor cleaning machines

Packbot:
Robot can search caves and help with bomb disposal missions

Cheetah:Able to clock speeds upto 40 mph to check out positions

TUG:
Automates the movement of equipment, medications and meals in more than 100 hospitals

Calif:
Allows surgeons to view their patients from a HD 3D camera

References:
Bloomberg Businessweek, Mar 3, 2011. Service Robots: Rise of the Machines (Again).U.S. companies chase the fast-growing market for service bots. Accessed: Mar 15, 2011.