Just a quick addition to the wishlist...
I dont know if this is possible or if it needs hardware support etc. but it may be a good idea to include support for Miracast streams.
i.e. Mezzmo acts as a Miracast server and receives connections from Miracast clients, i.e. Phones doing screen share.
Mezzmo then publishes the stream as a playlist etc. allowing DLNA clients to connect and show the stream.

End result is DLNA devices like TVs become Miracast streamers without customers having to shell out for new dongles like Chrome etc. just to get Miracast.

I know no-one else has done this yet so it would be good to be the first.

Just a thought.