Looks great. I don't know why I didn't know about these yet (well, most likely because I live in an apartment with no lawn), but thanks to you and patrickk in this thread I do. (His video link is very informative, btw).

A robo-mower would have indeed made a better housewarming gift for my sister than the cordless Dyson I bought her (same as mine)... although it would have set me back $2,300 instead of $300.

Still, very cool.

OK floors and lawns, ✓ DONE! Next somebody please point me to the already-existing window-washing robot.