First transatlantic handshake shows off Internet2

The handshake went through a Phantom — a device that combines robotic and force-sensing technology to detect the feel of a surface by the way it reacts to a probe. The vibrations set up in this way are digitised and transmitted over the Internet to another hand-held object, which is made to vibrate in sy?pathy to the original probe. “You can not only feel the resulting force, but you can also get a sense of the quality of the object you’re feeling — whether it’s soft or hard, wood-like or fleshy said Mel Slater, Professor of Computer Science at University College London (UCL) and one of the leaders of the research effort. ZDNet
Interesting. But where does Internet 2 come into the picture? They have also gratuitously thrown in IPV6.