After following this thread since page one or two ;-) I finally bought the camera (Firmware 101A) and installed CHDK today.
Great work, funnel, thank you loads for all the efforts you put into this port! Testing of the beta1.1 (will update tomorrow) I have a problem with the menu always being "washed away" by all-too active screen activity of the cam. Is there a way to put chdk "always on top"? This maybe a noob question, I'm sorry... This said, chdk is usable, of course, you can just move up&down in the menu to let it be displayed again long enough to know where you're at.