Am I missing some great feature that having a dedicated app provides?
In addition I personally have found that while raw Markdown is great for writing, when it comes down to rereading what I wrote and editing it, I prefer a properly typeset version of the text, so I don't have my reading * flow* _broken up_ by [unnecessary characters](http://daringfireball.net/projects/markdown/syntax) and `so on`. And having a live preview lets me reread as soon as I make the change.
It's a minor difference, but I like it. To each his own.
The source of the issue seems to be a tweet by Mou's author in which he says that when people say "inspired by X" they actually mean "idea stolen from X." (https://twitter.com/remaerd/status/484914820408279040).
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Why Another Markdown Editor?
I like Mou. I write Markdown all the time, and since I use OS X on a daily basis, Mou is my go-to editor whenever I wish to generate something with markup. But I had always wanted something more.
It came as a great shock when Chen Luo announced that he felt he could not actively continue the development, and wished to sell the ownership of Mou. No suitable offers surfaced (I honestly do not think there will be, either), and I decided that instead of waiting for others to do something about this, I should act myself.
I don’t have nearly enough money to match Chen Luo’s purposed offer, but I do have my own pocket of tricks and some free time. So I started from scratch, spent some weekends hacking together my own solution. And this is the result.
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That being said, the plan was ALWAYS for it to be non-free when it left beta. It just never left beta. Now, it's either going to wither and die OR the new owner (if there is one) is going to want to recoup their money.
Especially when they want to write things in MSWord that you have to end up getting into your application.
for live preview, i used Marked.app which also supports GitHub flavored markdown