I am diying to see USB hard drive support so I can use the ATV 2 as a music server, not streaming.
I am not sure we ever will!
ATV2 only supports USB in client mode - whereas to support a hard drive it needs to act as a USB Master. I have a feeling that is a hardware issue, and may not be something that can be overcome in software.
I would love to be proved wrong
That would realy SUCK.