HANDYCAM First of all, it's a bit misleading: this is NOT a "color picker" in the sense that it can be accessed from within applications.
It's an application itself. A slow-to-launch Java application and like most of those has a very un-mac-like UI.
IMO it doesn't really give you anything useful. You can get much more bang for your buck with a true color picker like Painter's Picker, or a standalone app like Art Directors Toolit
(Version 2.0)