My first "Scanguage"
 

It's not the actual Scanguage 2, but a cheap knockoff. So far it works perfectly.
Autel

For all you Canadians out there near a Princess Auto, they are on sale right now for $80. I think they do mail order too.
maxitrip auto computer | Diagnostic Tools | Autmotive Tools | Hand Tools | Princess Auto
I've never seen a Scanguage besides on their website, but this thing is pretty much identical with the trip, gauge, and scan functions. This one also has a "black box" recorder that records overspeeds, sudden decels, and whatnot. Plus, you calibrate it at every fill up. It displays the quantity of fuel it thinks you have burned, and then you +/- the % until it matches what you actually put into the tank. Good for those mods that throw the scanguage readings off, I suppose.