@smith I used Jekyll too and left it for Ghost for pretty much the same reason, but I am thinking to make a comeback to static sites. I have recently discovered Hugo and I am just blown away by the speed, with which it built my site.

As for posting from mobile, depending on which platform you're on, you can use Working Copy on iOS to write and sync directly to a git repo. You also have good choices for basic CMS, like Forestry.