I get the desire for narrative and different colors...but this looks awfully simple-minded. Why can a boy age 5-9 play with erector sets and legos, but a "girl's" engineering toy must comprise such a primitive set of components?
In no way does it seem that this is the final product she will ever ship. This version is easy to manufacturer and easy to sell. She has an engineering degree: I'm sure this was not the first design and she whittled down from more complex designs, which she can get back to after she has a thriving business and marketing team. Personally, I think I would have been bored by this after one time at the age of 6 or 7, but it would have gotten my attention (and I was never a princess girl, I just liked puzzles). Think of the things that can spin from this: more technical puzzles, parts that the kids can use to invent their own games, story-telling and programming. I'm committing to her project because I see her as a long-term producer of products that could genuinely make a difference (and if not her, there's enough in here to spin a thousand ideas). Like someone commented on here: The Diamond Age could come from this, and who knows if it will be a girl in 25-50 years who builds it?