Since Apple didn't provide a Preferences panel in the public beta to tweak the anti-aliasing of text, I've been poking around trying to see if there's a way to do it anyway, outside the GUI. I haven't succeeded, but here's the information I have found, and I'm wondering if anybody knows anything further:
Release notes for AppKit mention that one may set a global default for the font anti-aliasing threshold with the command:
defaults write NSGlobalDomain NSMaxScreenFontSize <font-size>
This doesn't seem to be honored anymore. Notably, it is ignored by Terminal.app.
Also, CoreGraphics has the following symbols defined:
4beffd14 T _CGContextSetShouldAntialias
4bfdb3fc d _disableAntialiasing.27
So this is indicative that the hooks for disabling anti-aliasing are at least still there.
Anybody dug up anything further?