Tiger's Mail folder list could learn something from Ecto
I'm a big fan of Ecto, a robust blogging client for both OS X and Windows that we've covered here on TUAW in the past. The design of Ecto's main window was inspired by the list of mailboxes and folders in Tiger's Mail app, but I just found out that Ecto took another crucial step that Apple really needs to pick up on: allowing the list to be moved to either side of the window, as so many users have asked for. In Ecto, a user can simply right-click on the list's resize button for a popup menu (pictured) allowing the drawer to be moved to either side of the window.
Apple, if you're listening (and you'd better be), please grab a demo of Ecto and take some notes.