You can also keep notes in git, sync them using Working Copy and use IA Writer.

Thats awesome! Have you considered Diigo integration?

I'm also disappointed, it seems there will be no software soon with perpetual monthly fees. It especially doesn't feel right in this case, because it's basically UI for open source tool and it doesn't offer (and need) really any server/sync/multi device features. I will look for alternatives, SourceTree maybe.

Kudos! I really like it and will use it. There is a problem with RegExp links: 404 errors. http://overapi.com/javascript/jsref_regexp_charset.asp