It looks like optimism about going past 8GB on the new quads may be misplaced. From the way I read the Crucial website, each slot can handle 3GB only (!?). So even if 8 is artificial, does this mean you can go higher only be paying for 4GB sticks ($$$), and getting 3/4 of what you pay for (12GB)? According to Crucial, Apple's specifications are that: Each memory slot can hold DDR3 PC3-8500 with a maximum of 3072MB per slot.* *Not to exceed manufacturer supported memory.