These bots are made for walking, and most do it well, but personal assistants they're not–they can't think independently or anticipate your next need. Honda's Asimo, the most sophisticated of the bunch, can open doors, flip on light switches, carry heavy boxes and even clear your dinner table–provided you don't mind a few broken dishes. You prompt it by joystick–point it at a door, and it'll dodge obstacles and climb stairs to get there. Fujitsu's HOAP-1 and Sony's Aibo-based SDR-4X react to voice commands. HOAP-1's designers want it to aid the infirm, but it won't emerge from research labs anytime soon. The SDR-4X is meant as a pure party bot–it dances and sings, recognizes the faces of 10 people, maintains eye contact and carries on limited conversations. It'll be available in 2004 for a cool $60,000 (the annual salary of a basic English butler).