1) Upgraded from a 3.10.26-1 without any major issues.

2) The Luci 'Software' tab fails with these messages when I click on
"Update Lists":

Downloading http://snapon.lab.bufferbloat.net/~cero2/cerowrt/wndr/3.10.28-14/packages/Packages.gz.
Updated list of available packages in /var/opkg-lists/london.
Downloading http://snapon.lab.bufferbloat.net/~cero2/cerowrt/wndr/3.10.28-14/packages/Packages.sig.
Signature check failed.
Remove wrong Signature file.

Collected errors:
 * opkg_verify_file: Verification failure.

3) 6relayd doesn't get installed by default.  Due to (2), it's loads
of fun to get it installed, since it doesn't show up on the 'Available
packages' tab (I ended up wget'ing it, untar'ing it, and then untar'ing
the data.tar.gz file).  Is there a way to install a local *.ipk ?

4) Once 6relayd gets installed, this /etc/config/6relayd Just Works(tm) on
Comcast residential cables in my area:

config server default
        option master   ge00
        list network    ge01
        list network    gw00
        list network    gw01
        list network    gw10
        list network    gw11
        list network    se00
        list network    sw00
        list network    sw10
        option rd       server
        option dhcpv6   server
        option fallback_relay   'rd dhcpv6 ndp'
        option management_level 1