What a wonderful app! Unfortunately I'm spending more time playing with it than working on the actual project :-)

One serious issue is the RAM allocation - I have a small (11 pages) Curio project open, and the app is taking 78 MB of real RAM. That's too much.

I know this effort was a lot of work from a lot people (and it shows), but the price is too high. For every one person willing and able to spend $99, there are at least 4 others who would pay $25. You have to find that magic threshold, but $99 is not it.