I'm in Castro Valley, CA.
My modem got stuck and needed a reboot, so I power cycled it, and also received the firmware upgrade just a few days ago:
Model Name: SB6120
Vendor Name: Motorola
Firmware Name: SB_KOMODO-184.108.40.206-SCM00-NOSH
Boot Version: PSPU-Boot 220.127.116.11m1
Hardware Version: 3.0
Serial Number: 317001026603836405040011
Firmware Build Time: Apr 17 2012 15:09:37
Name of configuration file = d11_m_sb6120_silver_c01.cm
Good to see this upgrade! I checked for an IPv6 address, and unfortunately, no love yet.
Does something specific have to be done to enable an IPv6 address, or is it something you just automatically pick up when Comcast chooses to flip the switch on their side? My router already supports IPv6 and automatically searches for an address on each interface. It only found the link-local address (starting with fe80::) which doesn't work, but this tells me that at least it's searching.