A MacBidouille [1] reader ordered a Mac mini on the online Apple Store this week and while he was checking his order status today, he noticed that there was the following mention:

MACMINI 1.42GHZ/512/80G/CMD/F
Est. Build On or before 11/07/2005
Replaced with new product"

This is usually the mention that appears when there is a new product announcement before the item ordered on the Apple Store is shipped. That may mean that Apple is going to announce an updated line of Mac mini's in the coming days.

However the shipment delay of the Mac mini is still "on the same business day" on the online Apple Store. So maybe it is simply a mistake from Apple. Time will tell.