ITAGirl: Welcome to FT! ITA is a deservedly popular tool among us and we appreciate the continued presence of ITA representatives.
While I got used to the functional spartan appearance of Matrix1, I have tried Matrix2 and agree with you that it has come a long way. In fact the only feature of Matrix1 I miss there is the ability to specify a 300 mile radius around a bunch of cities like "NYC,ORD".
One feature I have requested often and should be both easy to implement and extremely popular, at least around here, would be to provide Cost/Mile for various itineraries and make it a sortable column. That way, in addition to other criteria, we could rank itineraries in order of Cost/Mile.
Oh, and please publish the route language. You don't have to "support" it, just let us know what the syntax and commands are, so we don't have to depend on leaks and accidental discoveries.
Welcome again, and I hope you'll be a regular presence here.