I found a article about ScanGauge II going to update again...
http://www.pureenergysystems.com/store/ScanGauge/USB.htm
Status:
The main issue causing delay is the difficulty of making the software so it is upgradeable, but so that it can't be hacked for reverse engineering and knock-offs. The unit then needs to be beta-tested for at least a month before being made available generally.
The interface is a unit with memory and processing power itself. It has a cable that plugs into the unused connector on the ScanGaugeII and another that plugs into a USB port on a computer. They don't have to both be plugged in at the same time.
The interface will use SD Cards for data storage. You can plug it into the ScanGauge for logging and for other upload/download tasks. It can be removed from the vehicle and taken to a computer for data transfers.
The ScanGaugeII has all the hardware needed for the interface, but will need an upgrade of its program to use it. The Upgrade is free when you purchase the interface. Once this feature is ready, we'll just have you send in your ScanGauge, and we'll update it.
Price has not been finalized yet. It is expected to be under $100. This will also include the software for a windows based computer.