I just came across this over at www.ttora.com There is a group buy going on for the ScanGaugeII. The thread http://www.ttora.com/forum/showthread.php?t=75343 started a while ago but is still going on. I just spoke with Joey at ScanGauge 888-433-5664. Mention parksoffroad.com to get the group buy.
The cost is $150 including shipping.
This is the one with the upgraded software. They are currently trying to get more Toyota codes and when they do get the codes, they post them to their site and users can then enter them into the ScanGauge.