Sam Pullara asks: "I got an IM from my Mom today telling me that she couldn't find her Roomba. It somehow had escaped the kitchen and she couldn't find it anywhere, all the doors that it could reach were shut and she checked under everything. She eventually found that it had gotten into a room and closed the door behind it. Once all household items are networked I wonder if a rich environment like a house will make strange behavior like this commonplace? Will the interactions between all the individual devices create something more than the sum of their parts?"