I don’t think that’s the lesson. Twitterrific was a huge success and “kept the lights on” for Iconfactory for a decade. The lesson is not that building on the

I don’t think that’s the lesson. Twitterrific was a huge success and “kept the lights on” for Iconfactory for a decade. The lesson is not that building on the services of others is bad. It was good. But you don’t get to choose when it will end.