We first spotted the Samsung PowerBot VR9000 robot vacuum last year in Berlin, at the IFA consumer electronics and home appliances trade show. At the time, it was pitched as a high-end addition to Samsung's Asian and European lineups (it costs £700 at Argos in the UK -- in Australia, it sells for AU$1,499). This year, it's available in Best Buys across the US for $1,000.
