There should be rooms featuring Bluetooth source enabled complete systems for easy entry at various price points for people with smart phones and tablets who like what they hear at the show and aspire to good sound at home.
That's a good idea. At the table we had one setup using the Jriver app that lets you connect wirelessly to a tablet, which led to a few conversations with people who wanted to get their system connected. A/V installation companies and dealers could definitely capitalize on this. I know the Daedelus Audio/Border Patrol room was also using a wireless system for playing music, and probably some others, but I don't know how much that was talked about. At the SoCal CanJam a few months ago, Riva had a very successful showing with their new bluetooth speaker.