A fully functional CHDK would be the first goal I guess.
Sure. What I meant is existing CHDK features that someone is actually missing.
I can say though that, for example, movie related CHDK features do not seem to be possible on DIGIC 6 cameras at the moment.
Next would be the incorporation of the extra (?) features of this camera.
Examples, please.
Or perhaps a fix for the supposed IS activity even when not needed.
Well, someone with, say, an EF-S 18-55 IS lens could do some power consumption measurements with the IS switch on and off. That would help deciding whether spending time researching this matter is worth it or not.
edit:
I still need people benchmarking fast UHS cards with the benchmark tool:
Miscellaneous stuff -> Tools -> BenchmarkDoes anyone get reading or writing speeds above 20 MB/sec ?