40D: quiet shot 1DII-style?

With the mention of quieter mirror slap and a quiet mode for live view shooting in the 40D, I wonder if Canon have incorporated a 1D(s)II-style "quiet shutter" mode? It really should've been called "quiet mirror" mode, since it delays the return of the mirror when taking a shot, and basically has nothing to do with the shutter. Anyway, on the 1D(s)II this was activated via Personal Function, and on the 1D(s)III it's an actual drive mode. I don't see a 1D(s)III-style "Silent Mode" drive mode or anything similar for the 40D, but I wonder if maybe they've put it in a 40D custom function similar to the 1D(s)II? Or is the quiet mode just for live view? A PDF of the manual or a whitepaper would probably clear this up, but since neither are available right now has anybody read anything that mentions such a feature?

I dont know much about it but there is some data here on it http://www.dpreview.co​m …ews/canoneos40d​/page3.asp

Not sure if this helps. However from my experience with the old 1Ds Classic, yes, the feature is activated as a personal function. It takes effect only when the drive mode is single-frame shooting. When continuous shooting is selected as the drive mode, the personal function is over-ridden (even if activated) and the camera shoots as if the function were not present.

As such, whether the feature is present as a drive mode or as a personal function, they should work in a similar fashion, and during single-frame shooting only.

If i am not mistaken the "quiet shutter" is a new design rather than an older version. DPreview says this in the "What's New" tab:

Yeah, I knew about the quieter overall mechanism, which is nice because the 20D's shutter/mirror sound is louder and more noticeable than the 10D's was. The reason I was wondering if there's a custom function or something on the 40D to enable Quiet Shutter like on the 1DII is because in Live View on the 40D there's something called a Silent Shooting mode where the mirror return is delayed, which to me sounds a whole lot like the Quiet Shutter setting on the 1DII.