Brett also snuck in a feature he's been itching for: lots and lots and lots of
keyboard shortcuts. There's only one keyboard shortcut you have to memorize,
though: Ctrl+; switches FogBugz into keyboard mode and little letters light up
reminding you what the shortcuts are for various commands around the screen.
It's really pretty cool to be able to work through a bunch of cases, assigning,
editing, and reprioritizing, without ever reaching for the mouse. Combined with
the speed and responsiveness from Ajax, FogBugz has almost reached the level of
speed and fluidity of my dry cleaner's DOS 2.0 character mode database
application. And that's pretty darn responsive for a web app.

Joel Spolsky, "FogBugz 4+1/2 and Subjective Well-Being"
http://www.joelonsoftware.com/articles/FB4.5.html