I'm waiting until they start the back to school discount, and if the 13" doesn't have at least an i5 by then. I'll get the base 15" with a resolution upgrade. This is all coming out of my college fund, so I can afford it now; it just means more debt later 😀
As an aside, I would think they'll update the 13" as soon as Apple can figure out a solution for the whole integrated graphics bit. It's not like the iX processors make more heat or anything, so it's obviously the graphics issue that's why the 13 has a core 2 duo- apple can't give it non-intel integrated graphics if it has an iX processor.
So, that means the 13 will be updated fairly soon. The question is- how soon?
For me, past the end of May is too late. It's just not worth what it costs, at the moment.
*imagines the 13" with dedicated graphics* @.@