BusinessWeek online has posted an intereview with iRobot CEO Colin Angle. Lots of talk about the Roomba and why it succeeded where so many other robot vaccuum cleaners have (and are) failing. The reason? Price. The Roomba sells for $200 while most competing robot vacuums are $1500+. Angle talks about the problems of convincing robot designers to consider component costs and manufacturing costs when designing a robot. There's also some discussion about the US falling behind in robots for elder-care and Angle offers some hints about household robots iRobot is working on that could "make housework a choice".