> imagine if your roomba had legs That would probably be an improvement. Floors are designed for people, and may have several levels. An ideal vacuum would pro

> imagine if your roomba had legs That would probably be an improvement. Floors are designed for people, and may have several levels. An ideal vacuum would probably look something like a centipede. Anyway, the appeal would be that it can perform several tasks. It doesn't need to perform all the tasks a human can to fulfill that.