Roomba -- a vaccuum or a carnival ride?

OK, when I think of a Roomba, I usually think of the SNL commercial... and want to stop thinking about the Roomba immediately! But I followed this link from mental_floss today, and it's 46 seconds of good clean amusement... it could be the centerpiece of a feline amusement park ;) Watch and smile. Then, imagine 25-lb George-the-cat attempting this...