[guynamedloren]

Have you seen http://prose.io/?

Looks similar to mangomarkdown, and it's open source. I'm using it in a project I'm working on and loving it.

Edit: actually, I think I like the mango style even better. Didn't realize this before, but the markdown tags are hidden after you type - pretty neat. (My initial test was a few heading tags, which still display the '#' in the margin).

[Jonovono]

Oh, cool! I have heard of this, but I did not know they did the rendering like this. Thanks!

edit: Ya, I still like mongo and how they make the header kinda fade out, have support for checkboxes (well folding text does), and when you are on a unordered list and press enter it automatically makes a new one. Mango has just made a codemirror mode to handle this it looks like.