Leopard.. Macs.. Mirza..?

so the easy part of the question is, at what date will macbooks sold in the store come preloaded with leopard..? the harder part of the question is.. isn't mac coming out with some new line of macbooks that have an increased amount of memory? is this true? is there a date that this is going to happen on? long story short: my GF is going to be getting one.. and we are curious about when she should actually make the purchase... oh - and Mirza do you still work at the apple store? :) :)