Nice! There's a typo on the first slide though - "Interective Simulation", should be "Interactive" :) You should try hard to market this to enterprise users -

Nice! There's a typo on the first slide though - "Interective Simulation", should be "Interactive" :) You should try hard to market this to enterprise users - eg financial software houses and consultancies who knock out apps in Excel. Here you have a) the least intuitive software known to man and b) big budgets. This would be a huge step up from most of the business to business user guides I've seen. EDIT: After another read, your site seems to be somewhat aimed at this market. But anyway, best of luck.