I may have mentioned this before, but I really like that flight search parameters are URL encoded... it means that you can bookmark a search to watch prices or R inventory really easily.

I really hope that when they update the reservation listings and reservation details page, it'll have a similar behavior. I'd love to have the ability to bookmark my reservation detail pages. Perhaps related: I don't like on the old site how I can't work with different reservations in different tabs at the same time. I want to see that fixed.