Judging from the number of vendors offering robotic vacuum cleaners at the local PC fairs, along with rather healthy discussions in our forums (such as here, here and here) , it is safe to say that robotic vacuum cleaners are one of the hottest selling home appliances right now. And it is no wonder, especially when you consider our hectic lifestyles. In fact, according to statistics from the Federal Reserve Economic Data, Singaporeans work an average of 2287 hours in 2011, significantly higher than countries such as Australia, the United States and the United Kingdom, where the norm is only around 1700 hours.