Like the article said, barometers are too sensitive to changes in elevation to be useful for weather. And I don't know about you guys but my GPS is spot on even in the worst weather. So what's the point?
My Xoom has one....useless. Take it out and put in a HDMI out port.
EDIT : I didn't think about hiking and camping with the Nexus. I have one in the Xoom which is too big to take hiking and nothing uses the barometer thats, why I said useless.