I don't see how it's any crazier than having one in your pocket or on a desk. That said, I don't want one attached to everything all the time. I'm okay with it all as long as I have choices. The problem is when they are so forcefully integrated to the point that you can't use the thing without the attached computer. I really don't want a computer built into my refrigerator, but I get a ton of value from my Garmin watch. I also don't want a (poorly made) TV in my face while I'm driving either.