Kernel release status
Linus has been committing patches to his BitKeeper repository, however; they include lots more code annotations and fixups, various networking fixes, some NX improvements for old binary support, and a number of other fixes. Things appear to be stabilizing for the real 2.6.8 release.
The current prepatch from Andrew Morton is 2.6.8-rc2-mm1. Recent additions to -mm include the pmdisk/swsusp merge (covered here last week), some performance counter tweaks (enables inheritance of settings across fork() and exec()), some scheduling domains cleanup work, various latency reductions, and a large number of other fixes.
The current 2.4 prepatch is 2.4.27-rc3 and has been since
July 3.