July 1998 update: since our review of the beta, ImageReady has started shipping. Here are some of the improvements in the released version, according to Adobe:
Improved color reduction. They improved the Adaptive and Perceptual
algorithms and added a third choice, Selective, which is faster than the
others and particularly good at holding solid colors in a graphic and not
shifting them.
Three different styles of type
anti-aliasing: Strong (which slightly increases type weight), Smooth (which
creates type at a larger size and downsamples to smooth the edges), and
Crisp (the original technique which provides sharper type).
Improved Watermark Strength readout (in the info box on
the botom of the LiveView window) of the Digimarc watermark strength as
read from the optimized image (the watermark itself is applied to the
original, 24-bit image). This feature was improved to match the technique
used by Digimarc's MarcSpider service (which searches the Web for
watermarked images and reports their locations back to the registered
owners). If ImageReady's watermark strength readout registers a mark, the image
is marked strongly enough for MarcSpider to detect it.
Create Guides feature. When laying out a series of buttons or other
elements, this command lets you automatically generate evenly-spaced
guides.
Polygon Lasso. This new tool works just like Photoshop's poly lasso.