I always thought it would be cool to have robots get rid of bugs and weeds rather than spraying chemicals. Now since they are picking the fruit/vegetables maybe they can be made to do those two things also.

If they choose hardware that can use open source drivers or write drivers themselves and open source the drivers you won't be locked into what ever flavor of Linux they use. I have one of their notebooks and have used other distros, hopefully they won't only work with Ubuntu.