Sounds and looks really tasty. Matrox themselves were asked about two TH2Gos working together and they made no promises. Might be a bit risky they implied. You know, putty melting in the windows, that sort of thing.
As I'm keen on Flight Sims too, there's two good reasons to jump on it but there's umpteen other titles compatible. They do suggest that the three monitors used for TH2Go should match, don't they? All three the same type, name...