I was in a meeting and one of the attendees pulled one of these out and impressed me. It is essentially a Polycom like speakerphone meant for conferencing that hooks up to your Berry over Bluetooth. Most BlackBerrys have speakerphone options but they sound tinny and would not work for 10 people in a room. The Aura Mobile had some impressive voice quality. The coolest part was how small the thing is. It is pocketable.
Compared to a Polycom this is pretty cheap at $99. I would definitely recommend checking it out if you find yourself consistently having conference calls over your BlackBerry speakerphone.