Remember when the Quad core was released and it only supported 2GB sticks? Well it was found out pretty fast that 4GB sticks would work fine, but some people were saying "oh but if apple doesn't support it it's not a good idea". Has anyone else looked at the apple store lately? You can configure the quad with 16GB (4X4GB) directly from apple now as BTO. When did this change? Though it does cost $1800, lol. And lol, it still says just above it that the quad can be configured with up to 8GB of RAM. Somebody forgot to update the text.