Got photo with FFC working and as promised, the new update is posted. I have updated the second post in this thread with the link to a new flashable zip file. As mentioned there, only preview, photo mode works for both the cameras. None of the other stuff works yet.
As usual, would love to hear your feedback on how it works for you.
Out of curiosity, I tried faceunlock, but does not work yet, as it requires a ROM with hardware acceleration enabled. Tried building ICS ROM from source, but so far no luck. Even with hardware acceleration disabled, keep getting bootloops, with no way to know what is going on, as ADB is not available at that point. If anyone has any tips on enabling ADB early to understand the issue, I would greatly appreciate it.
Video recording will probably require a lot of time as it is heavily dependent on the hardware codecs functioning.
I will be hosting the changes in a github repository soon for interested folks. Stay tuned.