You make an excellent point by referencing a broader startup ecosystem. There is no black and white between useful and entertainment starups. In fact, the entertainment based ventures often act as a springboard for moving into more critical startups that apply clever solutions to real world problems. That is in fact where I believe Web 3.0 will head; the makers of Angry Birds will find ways to apply their experience, technology, and business model to more critical industries beyond entertainment. However that very message is lost in a sea of digital junk that presently leaves many to simply choose the path of least resistance.