Just posting here that I am starting on the A1100 IS port. I have experience with C++ and assembler. I'm very rusty with assembler so I may have to pull out my old dusty books or research some things online as I go.
I also have no experience with CHDK so I need to learn that as well.
I know the A1100IS is one of the low end cameras but I got one for Christmas and I like the idea of this CHDK stuff.
Currently I have the CHDK source and I have run the firmware dump through IDA and started picking out addresses and stuff.
As I figure things out I'll post them to the developer page here..http://chdk.wikia.com/wiki/A1100IS
and I'll post here when ever I make progress. or to ask questions or answer them.Thanks in advance to all previous developers as I proceed to dissect your work to learn from!