Thank you! As a matter of fact, Markdown support is the next big thing I'm working on, and I plan to look into incorporating lists.
I'd vote against list automation too, because it changes the way the cursor and keyboard behave.
URL detection would be nice though, since it only affects the visual display and mouse behavior.
I'd also vote for a constant-width font option. Preferably Consolas or one of its knock-offs.
It would be nice if the line number, column number, and number of characters in the buffer were reported in one of the corners.
Comments based on the web version (Firefox Mac).
The reason I'd like to add it is because having switched over from TextEdit and Evernote, the one thing I miss are the Cmd+B,I,Us etc.