Cleaning robot and automatic lawn mowing technology exists.
Within ten years the technology will be in more than 50% of US homes and yards.
It’s available on Amazon.com as I type.
Yep. The Roomba guy is just releasing for Kickstarter funding for a garden weeder.
http://www.popularmechanics.com/technology/robots/a26920/tertill-roomba-kickstarter-garden-bot/