Oh, I didnt realize it wasn't a web service. You could go for the gold by selling it as that I guess. You'd need the ability to use custom domain names.
I agree with Matt, if you could simplify the whole experience of publishing an online newspaper or magazine and make it a hosted solution, I think you could make a killing. I know for a fact several of my previous clients would have paid a nice premium for something like this.
Well, I could build it as a hosted service, but that means I don't release the code. I'm worried that a hosted service won't be able to achieve critical mass because, in this attention economy, it's difficult to get word out there.
I figured if I make it open source, it will spread faster and further.