Well, we do all sorts of websites for different types of photographers (see my profile for links) so we had an existing client base and a pretty good audience i

Well, we do all sorts of websites for different types of photographers (see my profile for links) so we had an existing client base and a pretty good audience in the industry in general. When the iPhone first came out, I jumped on it and created some simple pages/scripts that could be uploaded (along with some directions for detection/redirection). We sold a good amount of those for $79. Now we just offer them as part of our overall website offering (and it's a full web app similar to cilantro here).