OKAY!
Word from my local Apple Store as of 2 minutes ago is Apple has told them that the quad-core iMacs will start shipping tomorrow, November 3rd. This seems to be consistent with what a number of retailers are showing, including Best Buy, as well as what others have reported on here.
Something has to be going down tomorrow.
I believe that maybe the case. I just received the new remote I ordered along with the i7 iMac. The remote was originally scheduled for delievery on the 18th of Nov, then changed to the 5th. I received it today so I'm thinking that Apple might be off with the original anticipated delivery dates. So instead of mid-november we can expect notice of shipments this week. Yippy.