I meant the arrow _keys_ of course :)
I think they also use Tab, which also makes a lot of sense.
Check this description that I found on the Quicksilver forum about performing a task with normal mouse/keyboard commands versus QuickSilver:
example: to email the current file i have selected in finder to a friend in my address book:
1. normal mode
copy the file (Cmd+C)
open email application (mouse to dock + click)
open new email (cmd+n)
select to field (mouse move + click)
type in name (several keystrokes -- apple mail does auto complete)
select body (mouse move + click / or tab-tab-tab)
paste copied file (Cmd+V)
send (shortcut key or mouse move + click)
2. quicksilver mode
hotkey (cmd+space)
type (F I N -- auto completes to finder)
press right arrow to get selected file
press tab
type (E M A -- auto completes to "email to ..")
press tab
type friend's name (looks up in address book)
press EnterBy the way, for those who don't know, the "Finder" is Mac OSX's version of the Windows Explorer.
For more info on QuickSilver you might want to look at
http://docs.blacktree.com/quicksilver/what_is_quicksilver. However, I don't think that FRR needs to be able to do such complex things or even to imitate QuickSilver (FRR has its own purpose), but the general idea of using the arrow keys to select actions is quite good in my opinion.
Cheers,
Angel