These guys have done some nice work in an area that's too easy to overlook. I'm really excited to see how their full screen color management idea works out, since the main problem I used to have with calibrating stuff in Linux is with calibrating each screen in a multi-monitor (dual-head, triple-head, etc.) setup. I've only ever had luck loading profiles for each separate screen when using Xinerama and the proprietary NVidia drivers. Everything else I've tried either makes it impossible to load an ICC profile or will only allow one profile for both screens (since all the screens use the same gamma table with certain drivers), so you can calibrate one monitor or you can calibrate the other one, but you can't have both calibrated.
For right now though, huge 1920x1080 resolution screens are cheap enough now that having just one screen isn't so bad anymore, but it's only a matter of time before you'll pretty much need two or three screens like that. Fortunately, it sounds like these guys will have a real solution worked out within a matter of years.