That looks terrific mate. I see also that there is a waterproof version the DV688.
These are a darn sight less expensive than the Hummer I bought for Strudel, and better featured. Dual cams, wider view, larger maximum storage capacity, bigger screen and easier controls. What's not to like?
The Hummer does have inbuilt GPS, and wifi for file transfer. The Wifi transfer is very slow though, and it looks like this BlueSkySea unit has an optional GPS module for those who want it. Looks like a no-brainer to me :-)
The only thing the Hummer has going for it is that, mounted behind the windscreen, it contributes to the police bike illusion