If you recall, Odeo was Soundcloud v1.0, and it failed. Well, it produced Twitter, but from a market perspective that entity failed. The story is that the folks at Odeo were not "podcast people" (and thus didn't really eat their own dogfood) and furthermore, this was exacerbated when Apple added the podcast directory to iTunes, and they called it quits (in a very gentlemanly way). I'm not trying to say that Odeo and Soundcloud are exactly the same by any means, but it does point out a valuable lesson that there is value of revisiting/repositioning/resegmenting an existing market, and how it can lead to momentum, and ultimately success. (This notion is touched on in the 4 Steps to the Epiphany, and is not my original idea). Note that I was/am a user of both odeo and soundcloud, although i really like where SC is going.