Just a heads up, because this makes me bounce with joy - the sources for the Darwin kernel and toolset underlying Mac OS X 10.5 have been released on Apple's Open Source site. The source associated with 10.4.10 is also now available. This will help driver writers discover exactly how their code is interacting with the kernel, random developers identify exactly what's going on in the kernel to patch annoying behaviour (e.g. I'll be looking at this one), administrators perform audits (I see code related to FileVault there, nice!) and students learn more about OS design. Since 10.4.10 has been out for so long and there was no sign of the sources, and macosforge's homepage has seen no updates since last year, I feared they were winding down their open source programme. Well done on keeping the source open, Apple.