Rumors suggest Apple's upcoming October 23 event will also bring a much-needed refresh of the company's iMac and Mac mini line of computers. Adding some credence to the rumor is the observation from AppleInsider that iMac inventory is declining in some Apple online stores in Europe. Both the German and UK stores now have ship times of 1-3 days on their two iMac models. It's fair to note that this is not a widespread decline in supply, so it's possible this is an isolated incident, and the timing is coincidental.