Finally catching up with the weekend's news, and I've been taking a look at the reports filtering in about the 10.4.3 8F24 build. macnews.net.tc says there are still issues with printing and long usernames. It's a beta, right? More interestingly, though, AppleInsider is reporting some changes under the hood of the companion x86 developer release, 8B1027. Unlike the initial, hevaily pirated x86 release, the new release has some more stringent copy protections. Moreover, it seems the universal binaries aren't quite so universal afterall: 8B1027 isn't backward-compatible and UBs compiled with the lasest version won't run under the earlier release.
[thanks to everyone who caught this!]