Other World Computing (OWC) has announced that 4GB and 8GB kits of DDR3 1333MHz RAM, specifically for the new "Mid 2011" Mac minis, are now available. The RAM kits work with all speeds and chip models of the new Mac mini, and can be up to $229 less expensive than similar upgrade offers direct from the Apple online store. OWC also offers a small discount on the RAM kits when users trade-in their factory RAM modules when ordering.
