It looks most interesting. See the announcement for more information. These should probably be applied by anybody wanting to do serious Linux RAID work. With luck, they will make it into the 2.2.12 kernel. At this point the two competing FireWire initiatives seems to have been thoroughly merged, and development is proceeding at a higher pace.
Some ground has yet to be covered, however, before it is ready for real use.
As usual, H.J. Lu has a knfsd patch out. These patches are still required for serious NFS servers running on the 2.2 kernel - especially in heterogeneous environments. It wouldn't be a week of kernel development without a devfs patch from Richard Gooch. Logical Volume Manager 0.7 has been released by Heinz Mauelshagen. A TCP Vegas patch for both 2.2.10 and 2.3.10 has been announced by Neal Cardwell.