Yes, remote and physical team members must have a mobile webcam that they bring with them on all breaks. The webcam must have RFID tags built into it, and their homes and frequent break locations must be equipped with RFID scanners to verify the location of the camera and prevent any funny business. No exceptions, ever.
Also, when people ask questions they never EVER preface them with "Let me know when you have a second".
Seriously, are you in third grade? Can you read something and not interpret it literally? The Greek knew reduction to absurdity was a shitty argument more than 2,000 years ago... how come you still haven't figured it out?
From adrianhoward above:
> Another field study compared interruptions in paired, radically-collocated and traditional, cube-dwelling software development teams, and found that in the former interruptions were greater in number but shorter in duration and more on-task (Chong and Siino 2006). Close proximity improves productivity in all cases." -- http://conway.isri.cmu.edu/~jdh/VRC-2008