With the macro controller you absolutely had to connect it via cable, which is a hassle because I don't own a computer. Let's say that by using an android app you don't have to. How and when?
I forget but think that you can change thing in the rune pack then upload from app.. Still think you have to build the runes from your PC! Will just wait for Odin to answer this!
We will actually end up having MacOS out first (surprisingly) before the Android. Android is stuck at 99% done, the same software developer that is behind schedule on the forge update would be the same one to finish the Android app.
Android app definitely not until 2015 some time and likely not in early 2015.