I've made no secret of my admiration for Fletcher Penny, the renaissance physician behind MultiMarkdown. Fletcher just released version 2 of his successful MultiMarkdown Compser App for Mac. This is a substantial improvement over version 1 with upgrades to the underlying engine and most of its user interface. In other words, it got a new motor and a fancy new paint job. The app is just $5 for a limited time. In addition to getting yourself a great MultiMarkdown editor, you'll also be supporting Fletcher for all of the work he's done on MultiMarkdown. If you write in MultiMarkdown, go check it out.