Let us know when you notice differences?
BTW, thanks for the Wiki: It's practically like having a manual!
It may be a while until I can check out the changes. Most likely the guys who noticed subtle banding and other stuff that might be due to firmware will know what to look for and will probably install it after a couple dozen of us report that our printers didn't explode :-)
I would rather get Canon to tell us what the Firmware Update FIXES than try to guess what it does. We have done enough guessing just trying to figure out how these printers work!
PS The Wiki may be BETTER better than having a manual, because:
1) The Wiki is written in plain English, not Canonese.
2) We aren't afraid to point out the bugs--although we would be happy if Canon could convince us that the bugs (e.g., plugin doesn't center properly) aren't actually bugs.
3) The Wiki gets updated as soon as we discover something new, which essentially never happens with a manual.
--John