Briefly, Tapiz ( Spanish word for tapestry ) is the framework we have developed and on which persP beta is built upon.
We have created it to solve one of the biggest issues the Alpha version had. Reliable, automatic connections between the input or dropdown controls of the interface and the nodes in the canvas. Accidentally it also solves in a dead-simple way team updates via socket connections.
The system works great and it's extremely fast and responsive. It works so well in fact that we keep smiling like idiots when we test it :)