Swap out a spent battery for a fresh one, how clever is that?
...this was interesting, but did anyone check out the biped walker from lynxmotion...damn that looks pretty cool and walks decently as well...check out the main page of the site.
Well for a pet care robot that's indeed maybe a bit too much, but i still find the concept pretty smart... Imagine for a human care robot?
I don't really get why you seem so reluctant to the concept, but after all, why not?