Interesting demo, although the cynic in me realizes they're only 80 miles apart, and running over some of the best network infrastructure in the country. It can't get better than this, and could certainly be worse.
And, even them, I still hear a hint of delay in their timing. May be good enough for working out parts, but maybe not good to prep for live play.
I happen to have first hand beta experience with this product.
We started using it as the first test case of an entire band.
At the time 2009-2010 you had to have a solid connection.
I had fiber to the house rated at 25/200( crazy huh ).
Some of the other people had DSL or cable.
It worked to a point and then started breaking up.
That point was about 4 devices.
This was all in the greater SF Bay Area except me in Valley.
When I say greater, for those that don't know, it's an area about 75
miles across with the bay smack in the center.
It's huge.
Driving from San Jose to Novato in Marin county can take an easy hour and a half.
So it really saved us a lot of drive time and renting studios.
Given the state of the internet now I think it would be far better.
You can do skype conference calls now with 10 attendees no problem.
Basically it was a little digital mixer that gave you a mic in, an instrument in,
a mix/headphone out, and an Ethernet jack.
There was a control server that it connected to in order to do all the digital
mixing and your device was hosted off the server.
You listened to yourself in real time and you could adjust the level
of each far side thing in the GUI. Basically dial in your own mix.
You could also drop the codec down a notch or two to slim down bandwidth.
It got kind of Telephone quality but it worked.
The interface was well thought out.
It looks like it's still in production. Good for them.
I should bust mine out and give it a spin. If I can find it.
John