I haven't strongly considering supporting Google+ yet. I view it more in the Facebook/Twitter social conversation vein than as a traditional blog, which MarsEdit continues to focus on for the time being.
I realize some people are using Google+ essentially as a blogging platform, so I'll consider it if it's technically feasible and if there seems to be sufficient demand. This would be the place to register your interest! Thanks.
but if you allow for that, it's not too far removed from FB and Twitter. That said, I think what most people would want out of FB and Twitter publishing is the ability to post to their blog, but to simultaneously post a link back to the blog on those various outlets.
I currently use a WordPress plugin for this, but having a single place to do everything... holy grail is an understatement. ;-)
Daniel, I don't think Google+ (or Twitter, or Facebook) integration for posting content is the appropriate use of MarsEdit. None of those platforms are blogging platforms.