I still sit on the sidelines, waiting. I'll start looking at an OSS graphics program when it supports all of the following: duotones, LAB, Pantone/HKS, CMYK, more than 8 bits per channel, good color management and gamma, adjustment layers and quality font rendering. I might be missing a few from this quickly thought-up list, so don't hold me to that right now.
Do you know of any linux product that can capture short clips from .avi or .mpg files?
Krita supports 16 bits per channel. Dunno about the rest.