ANd I can third this comment. I actually use the robot daily -- it's entirely utilitarian. Houses are small in Berkeley/North Oakland, and I've long outgrown my closet (and two kids & m'wife in a 2 bedroom house made for very tight quarters). So I the crawlspace became storage for zero-volume manifodls.

Didn't take long before crawling around caused backaches - and thus, the mother of invention visited me in the guise of an idea of a remote controlled forklift.

Cheers to all, -Cliff