MultiMarkdown has just been updated to version 4.7. MultiMarkdown 4.7 Released. Unfortunately it looks like my biggest gripe with MultiMarkdown still isn’t fixed.
When adding images with MultiMarkdown size attributes, the HTML that is generated uses styles instead of the size parameters. This is the reason I prefer to write image links in HTML in my Markdown documents. Anyway, I still really like MultiMarkdown because of table, internal links and footnote support.
Brett Terpstra has updated his Quicklook plugin for Mac OS X, so you can see Markdown files directly in Finder without having to open any programs. Release 1.1 · ttscoff/MMD-QuickLook · GitHub. Check it out.