hi all. I just purchased a macbook black 2.4 ghz 2008 version in hongkong and had 4gb of ram installed. I remember someone asking what is the use of so much ram. however, today as I was checking the activity monitor \system memory info, this is what I saw: I got that on leopard with just safari running: total memory 4 gb free: 1,19 gb wired: 548.30 mb active: 847,93 mb inactive: 1.43 gb (for swapping) total used 2.79 gb 2.79 gb used by the system and I am not even using programs. that leaves me only with just about 1 gb of memory for applications. I can't even imagine how on earth a macbook with 1gb ram can run properly!? so now, if you are questioning yourself about wether or not upgrading to 4 gb ram on a new macbook, don't hesitate, just do it because it seems to be a basic need for new macbook (2008) with leopard installed.