LOL! There are so many things that people can do with apps from their phone that I don't think I would want. Like start the car, open the garage door, turn on the TV, etc.
I think a "turn off the oven" app would be good for people who have OCD though.
Hey, did you ever hear of the toilet that would examine your excrement and tell you how healthy/unhealthy it thought you were? They had some program on innovations awhile back and they had a toilet that did that. I'm guessing it was either too expensive or too unappealing. LOL.