That's a big lesson for small-scale mobile-based start-ups: Whatever you do in this space, you must start with a sustainable business model. In my previous sta

That's a big lesson for small-scale mobile-based start-ups: Whatever you do in this space, you must start with a sustainable business model. In my previous start-up we ignored that fact, and we failed. Unfortunately, the mobile space is not as "free" as the Internet. Especially here in the US, we basically have an oligopoly, so don't think you can just build something and "put it out there"... Everything you do will have a cost, and someone will have to eat that -- Either you or your customer.