Mobile as an Early Warning System

Last week, while attending ASTD's TechKnowledge, I had the chance to catch Harvey Singh's presentation on learning and mobile technologies. Besides the fact that I now have to have a tablet PC - NOW! - one comment Harvey made stuck with me. (Paraphrasing)

mobile technologies can enable intervention as performance begins to become misaligned with goal behaviors creating a tangible performance improvement.

His point being that while processes are automated and captured through mobile technology, we will also be able to monitor performance much more granularly. Is this Big Brother watching and screaming as soon as we make one minor false step? Or is it coaching at it's very best?