I'm just curious as to Apple's distribution of RAM between different computers and/or different amounts of memory. My results are based on my MBP C2D with 1 GB of RAM. I used the iStat Pro 3.2 widget to determine the RAM allotment after all applications had been closed and the system reached a stable idle. There was nothing running in the menu bar-bluetooth is turned off as well as Airport. Ethernet was connected and I was running about 8 widgets (I dont think this would matter much). My computer has been running for about 5 days as well. Here are my results: Wired: 136 MB Active: 290 MB Inactive: 61 MB Free: 534 MB I assume most MBP's with 1 GB should have similar results, but it would be interesting to note the differences if any. I'm also interested to see if MB owners experience much of a difference. Lets see what you guys got!