Microsoft makes a good show as of late supporting linux with their dev tools, Azure, and such. That recurring per user revenue really looks good on the books.
Well I have the creative skills of a river rock so others would be better positioned to discuss it. Thank you for the discussion and I will be backing the kickstarter!
The lack of details as to what the fees will be makes it difficult to say if they are reasonable or not. Much the same language you used has been used by enterprise software vendors licensing product and their definition of what is reasonable is rather pricey.
However if the terms are listed...
I can't seem to find what license the created projects will be under. Some applications want a cut of revenue or extra money to allow such use. Any idea what license / business model they will use?