Scooba seems like a great idea; mopping the kitchen floor is a pain in the buttski so it would be great to automate the process (yeah right, I'd spend the same amount of time watching the little critter scoot around the floor doing its thing).
I'm surprised the "whisker" side brush is as effective as it appears to be. Originally I envisioned the side brush as being more like what you see on street sweepers, a disc having bristles pointing down around its entire circumference so it doesn't miss anything. And there would be two of these, one on each side, so it could get up to walls on either side without having to turn around. If the design was done right, the side brush would be on a swinging arm connected to a sensor, to keep the machine following along the wall line.
It would start by going along the entire outer perimeter of a room using a reflective dot on the wall as a start-point, and then having "measured" the room (when it got back around to the dot), it would gradually spiral inward to the center of the room and when it got to the very center, it would be pivoting in its own length, which would be the "I'm done now, time to go home" signal, and cause it to seek out its charging station.
Toggle: "Roomba Skins" dude! You've got a product there. To that I would add, "Moon/Mars rover" (NASA logos), "futuristic street sweeper" (New York Sanitation logos), "tomorrow's Army" (olive drab or camouflage with Army logos, 10% of purchase price donated to veterans' organizations), "Trilobite" (patterned after the little sea creatures by that name whose fossils are well known), and "Ladybug," with a stylized version of the familiar black head and red body with black dots. We can of course do without the "giant spider" theme and the "cow pie" theme
Here's how to dog-proof it: a little off-balance sensor that shuts down the unit and beeps when it's turned more than 20 degrees from horizontal.