Very similar UI to ia Writer [1], which I really enjoy — as someone who easily gets caught up in the minutiae of choosing fonts/sizes/linespacing etc. and thus never starts, you know, actually writing, it’s actually sometimes great to have a program with preset attributes that you can’t tweak. Adding git-like versioning is an awesome addition, I’m looking forward to playing (and maybe writing!) with this.

[1] http://www.iawriter.com/mac/