Well it really dosent have anything to do with it. But for w/e reason apple decided that the limit would be 4GB for the macbook. Whereas the pro's can take 8, except for the first gen unibody 2.4ghz 15", which is also limited to 4GB. Apple may release an update to allow it 8GB of ram, but until than 4 is pretty much the max you can get.i dont see how a 200mhz increase and a built in battery has to do with ram
Not correct.Because your MBP has the Santa Rosa chipset and the current MBP has the 9400m chipset.