KVS: Couple of suggestions:
(1) Under the "My Trips" tab, the trips seem to be ordered by when they were saved. Would be better to have them in date order.
(2) Following on from the above, the trips don't seem to save the time of day of the query.
(3) I would like to see a "hotkey" to increment or decrement the date and search. E.g., if you look for availability on 24th May and you see nothing, it's be nice to be able to hit one key to search again on the 25th May. Perhaps PgUp and PgDn?

Otherwise I really loving this tool, it's GREAT! I've just reduced my ExpertFlyer membership down to the $4.99 level because (a) they have very little in the way of fare classes and (b) they don't seem interested in implementing suggestions like you do. Everytime I suggest something, "yeah, we thought of that" or "not interested."

Now if only you did flight alerts...