The wiki says : "Support pending for: move rec. stuff and large SD support ", what that large SD means?. I have a 4 Gb (and also some little ones I'm using for testing)...
The problem is, the cam boots only from fat16 filesystem which is limited to 2GB (or 4GB with hacks).
The 'large SD support' hack for cards larger than 4GB works like this: divide it in two partitions:
* 1st small fat16 which contains diskboot.bin
* 2nd the rest fat32. chdk switches the partitions so the cam writes the pics to the fat32
however, this feature does not work in this port, yet. I made the code but it freezes the cam in play mode.