When is a company no longer a startup?
morphir: So, the entire point with starting a company is to make wealth. This wealth is traded with money. The day your company create so much wealth that you go break-even, that will be the day you have established a profitable company, and you can be considered entering the phase of intrepreneurship (meaning to work on a already established business-model). A startup is entrepreneurship. 
So the next question would be: is this model which I've "entrepreneured" sustainable? Will it continue to grow?To sum it up, I would say that 'entrepreneurship is act of creating a profitable business - where as intrepreneurship is the act of maintaining it'. I would also add that the distinct difference between those two people, is the willingness to take risk one often see in entrepreneurs. Whereas maybe inrepeneurship is handed to college-kids with an degree.