It's posted at LWN.net. Among the items: "Using HFS+ with Linux. There has been a discussion about using
HFS+ partitions with Linux. They are used on MacOS X for large
partitions. A Linux driver is, however, unstable and abandoned.
Several people have experienced kernel panics when accessing HFS
partitions. The only way to access this filesystem with Linux is to
use userspace HFS+ tools from the hfsplus package. Alternatively
one could use UFS partitions which MacOS X supports and for which an
experimental Linux driver is available."
September 26, 2001