Let the hive mind of Engadget get that for you.
"I need help! I want a small pocket camcorder but I'm not sure which one to get. I don't want to fall into the hype of the Flip because I worry two hours won't be enough. What should I be looking for when considering a small camcorder and where can I get a good quality one with expandable memory? Thanks!"
IMO, one of the main reasons for DSP in this product was for microphone support.
Thus, it's a drop-in for existing matrix installs that (also) require mics. Classrooms, conference rooms, etc.