18.104.22.168 is now available.
.37.3 ran perfectly for me. I'd say the .37's are in pretty good shape.
Kernel and modules are available from the following locations:http://www.plugapps.com/with-linux/http://sheeva.with-linux.com/sheeva/
Features e-sata, dmcrypt, IPV6, CIFS, NFS4, EXT3, EXT4, JFS, XFS, FUSE(for ntfs-3g), UBIFS, usb-serial, uvcvideo, iptables, appletalk, bluetooth, v4l and ppp.