I can't wait to try one. I currently use the HD Hero mainly for racing in-car camera stuff. The video quality is fantastic but the two biggest shortcomings IMO are (1) the terribly unfriendly UI and (2) the audio quality AND lack of an external mic input. It looks like those issues are addressed with this new version.
The remote control will also be handy, especially in cases where the camera is well out of reach.
Agreed, it does not look as sexy as it could but I'll take function over form in a device such as this.