[railsjedi]

I would pay (prepay) for this. OmniGraffle has been painfully slow to improve, and just doesn't seem to cater to web or app ui design. Unfortunately it's the best thing out there so far. Need something better.

Build this as a native app and charge $monthly. That way people can get started with it for cheap and if you keep making a good product, they'll keep paying you for it.

I really feel like the 1 time app charge model is severely broken for consumers. Omnigraffle gets my $200 bucks and all of a sudden there's nothing I can do to influence them anymore as a customer. The product stays pretty much the same for 4 years, as they move on to find the next pot of gold app to build.