This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
Not really. One of the points of having factories is to hide the details of object instantiation, so we either don't, or shouldn't, or can't, concern ourselves with details like whether the object being retrieved is a singleton or not.