Roomba Maps Your House but Costs a Mint

See endgadget's review here--

Robot lovers will geek out over the new Roomba 980. It includes a WiFi app and maps your house. It keeps a history of cleaning sessions, and can start from any room to vacuum your entire home. It is iRobot's first consumer product to include vSLAM technology (visual simultaneous localization and mapping). All this technology comes with the highest price yet for an iRobot vac: $900 retail. See the wrap-up by author Devindra Hardawar for a listing of the competition. More