The celllogs have arrived. They are very small which is kind of nice. The bad thing? They don't come with wiring harnesses for the batteries! I was under the impression that they did. The upside is that it seems like they'll plug right into the DB8 balancer connector. If they can't, it looks like a standard circuit board female header will plug into the connector.
Here is the kit contents. You see it comes with a CD. It contains software for data logging which is pretty nice.
Here is a close up of the actual unit. You can see the two ports on the side...
One is the USB to connect to a computer, and the other is the very handy alarm port that I'll be using to trigger the arduino automatic disconnect. In the celllog setup, you can set the port to normally open, or normally closed, so it'll be really easy to program the arduino to read this signal.