Patience, my friend, is one of life's eternal virtues.
I'm going to release another update this weekend (1.3.7?), for the Exchange / Forefront issue (and some other bug fixes).
After that, I'm going to starting merging new code into the main branch.
So far, this will include the new message list code (including those "customize" settings) and a navigation drawer for folder switching.
Oh, also SSL cipher hardening for the Fed Reserve chiefs and spies among us.