Quicksilver - Mac utility par excellence

"Quicksilver is bar-none the best productivity application on the market today. Whether we're talking Mac, Windows, or Linux, freeware or shareware, this Mac-only, freeware application launcher-and-then-some is the best productivity booster I have on my computer."

Reading the geeky giddyness over this product is a little embarrassing, but it also makes me want to check it out! Mac users/lovers only!!