Phantasm CS is a range of plugins for Adobe Illustrator.
Phantasm CS is a range of plugins for Adobe Illustrator providing the following benefits:

Color adjustment tools (inc. Curves, Levels, Hue/Saturation) that works directly in an Illustrator document on all embedded vector objects and images
Creative tools including vector Halftones and Duotones
Print production previews including quick and full separations and ink coverage
Embedded image editing

Features list:
Whole Phantasm CS range
Color functions available as Filters and live Effects:
Brightness/Contrast
Curves
Desaturate
Hue/Saturation/Lightness
Colorize mode
Invert
Levels
Shift to Color
Photoshop CS to CS4 compatible color change settings Load/Save:
Curves (including pencil mode)
Hue/Saturation
Levels
Filter and Effect color function options:
Safe CMYK
Ignore SPOT colors
Apply to: Fill / Stroke / Bitmaps
Convert colorized bitmaps
Auto Rasterize
Black / White color cut-off: you can free download Phantasm CS Studio 1.0 now.