Supposedly the guy told my dad that they had hoped to ship by 27th nov but could not promise anything and hoped to get delivery before christmas, although 27th dec was another quoted date. In other words I don't even think apple know when these things will be shipping! I think that makes it worse that all these customers are left in the dark about what on earth is actually going on.
Edit:- Apart from getting quoted in the apple support pages regarding the same topic, there has been a post on there of a similar line, and I quote.
"Finally from the latest update i was told by Apple customer service that it will be likely to be shipped end of Nov for uk, i went to apple store and one of their guys said that the Quad core macs are more likely to ship Dec, based on their internal memo, so we are no further forward."
Here is the apple support thread link