Sorry to but in …
I have to say that I’m very new to WordPress and was attracted to Platform because I thought it would give me a head start in creating a layout that I liked. I think that the issue highlighted by nikoli is similar to my experience. The free demo is (understandably I guess) so crippled that it is a poor advert for the real thing. For me the demo hasn’t so far left me desperate to get my hands on the pro version. Price is not an issue but I’m thinking do I really want to spend $95 on something that is similar to the free version only to find that it doesn’t do what I want it to do. Perhaps I’ll just get a different set of constraints.
I wonder if you could find some other way of providing a demo of the real thing whilst also protecting your investment in development. Or a better less salesy video demonstrating a real life application.