El Camino Hospital in Mountain View, Calif. is using Vocera's Wi-fi badges: The nurses say the system reduces the time it takes them to track down doctors, increasing the time they spend with patients.
I'm wary of Vocera, mainly because it relies on voice commands. I've never, and I really mean absolutely never, been happy using any kind of system that requires voice recognition. It never works right. This article points out that people with accents have had trouble using it. I think there should always be a backup--a keypad or something in case the user is ready to throw the device out the window if the voice recognition doesn't work.