love the s90, except the shutter lag is just bad, compared to my 3 yr old sd750. as a compromise, i played around with the low light mode and found the shutter lag to be significantly eliminated. in all other modes, if i 'drag raced' the 2 cameras, the s90 gets left behind noticeably. but in low light mode, the s90 beats the sd750 in taking a picture.
with that great benefit, the catch is manual settings are gone. if i could pick one to have, i want control of the iso. i can live with the smaller pic size. will chdk allow me to do that, have manual settings in low light mode?
THANKS!