I first saw Vocera a few years back at one of the expertly produced Chris Shipley Demo events in San Diego.
Their Star Trek communicator badge like voice device has always captured my imagination, and now with Motorola in the WiFi Canopy business I'm not surprised to see them make an investment.
Imagine wandering around town with a Vocera device and having smart technology like iotum or GrandCentral route calls to that device only if they are essential. Or using IVR technology like Communikate or TellMe offers. Now those are hardware/software/network mashups just waiting to happen.