That would be quite useful. I do that from time to time, but then I also set certain things and want them to persist because I have the sleep timeout set to 30s, and I often (at gigs) set -1 or -2 exposure compensation for the whole gig. But yeah, auto-resetting most things would be good, and a couple more configurable beeps would rock. "attenion user: you have now taken 3 shots without a CF card in the camera" sort of thing.

Overall, what I'd like is more configurability. Even if it was via an SDK, it would still be useful - the Wasia hacks showed what can be done, and what people will put up with (the hack meant losing access to white balance but gaining a bunch of useful features on the 300D). Basically I'm talking skinning support, one step up from the current custom controls.

One thing that bugs me is that the 30D has a spare button but it's not user configurable. The "direct print" button can only be used when the camera is hooked up to a suitable printer. The other 100% of the time it has no function. None. That's just silly, especially as it's recessed and would be ideal for a "revert to custom settings" function or similar.

But ideally Canon woukld just let us geeky types run amok with linking buttons to functions. Like the old DOS QEdit did - you ran a separate configuration program that edited the exe so your chosen setting were hard-wired in and the exe was still under 64kB.

I also want to add a plug for DPreview's favourite bug: the camera dumping its buffer if you open the CF card door. Be serious people, just pause the sucker and if the card is the same when the door shuts, resume. And beep or something.