Yep .. Same here on the delivery timing. Mine was showing Nov 13th for delivery, but this has changed to no date, although there's no delay flag yet.
I went into the Apple Store yesterday and had a good look at the Silver and SG and prefer the SG; I guess it's personal preference. I'm going to sit tight. Would have been great to get one at the store before the order shipped, but I don't really want to go through the hassle of buying at the store and going back to return my preorder phone when it arrives. If all we're talking about is waiting until Monday or Tues it's not worth it. We should know later today or tomorrow on the timing.
I just came back from the Apple store and I decided to wait for my SG preorder. I like the silver/white in the back, but I found the stainless steel band too shinny for my liking. Just like I would never put a chrome wheel on my car.
Beside I also make someone really happy that I cancelled my reservation at the store so someone can grab it.