Then why is there a download button next to the song, and why does iTunes TELL me it is an audio stream?
I think she doesn't know anything about it besides what they explained in the keynote months ago.
Are you talking about the "Screen Sharing" option in System Pref? If so it has been working for me for the longest time. I have a domain name and have port forwarding on my router and can access it anywhere with any VNC client. Just make sure your ISP is not blocking port 5900