Collaboration technologies enable people to more efficiently communicate. The astronomer who sits on the top of the mountain in the observatory, the sailors out at sea, the soldiers far from their homes. Collaboration technologies enable these people to all stay in the loop with what is happening locally. In reference to the Global Workers of today I think what Collaboration technologies really do is help to shrink that world. You can absolutely develop those working trusted relationships more effectively utilizing video than you can striking to plain old audio calls and video is now more pervasive than ever with no sign of slowing down any time soon.