I saw that there was a discussion whether to make the next version open source or not.

I think that two things are very important:

1. Jack should get the recognition and pay for his giant effort.

2. People should feel safe using this amazing lib for the long term.

What do you think about this:

I think that the best way is to sell product except for the support which is a great idea.
There could be a simple editor that will be connected to the documentation and while hovering or clicking on a word in the code you`ll get the matched documentation on the side of the screen.

That could be very useful for learning the examples.

You can protect this product easily by "selling" a password and making use of the product only over the web.
Each time there there will be a new release you can charge a small upgrade fee.

This is just a suggestion :wink: