I have a NAS box connected to my network. A Buffalo LS-XL series. It has webaccess built in that works quite well (at least after the latest update). There is also a buffalo android app (and on for i ) that allows connection. I can surf the folders etc quite easily. Even without the app there is web access, through their site, and might be able to access that way.
What would be great is to be able to create a playlist (outside of MM but in MMA) maybe or at least access a folder on the NAS drive in MMA and be able to play the music.
I have a 32gig card and carry 28+gig with me but let's face it ... when you have over 700gig 28 is never enough

So some way for MMA to see the folders and play the data would be good.
of course if someone says it already does it I will feel extra stupid .. but will be very happy.