thunderbird-nostalgy 0.2.15+svn131-1ubuntu1 (i386 binary) in ubuntu intrepid

 Nostalgy adds keyboard shortcuts to change the current folder, to move/copy
 selected messages into another folder, to add/remove/view tags; the selection
 of the target folder is made through an auto-completion box where you can type
 part of the folder name. There are also commands to improve the navigation
 between Thunderbird's three panes.