Being in Australia I was very fortunate to be able to pick up a copy of Snow Leopard from the Apple Store in Doncaster, VIC early today (a bit after Fri 9:00 AM AEST = Thu 4:00 PM PDT, Thu 7:00 PM EDT, Fri 12:00 AM GMT). All that Base 10 v Base 2 hoohaa a couple of months ago now seems a distant memory, but having now installed it on my Late 2008 Aluminium MacBook, I was happy to see that the Macintosh HD volume was indeed calculating disk/file sizes in Base 10. This should hopefully be the beginning of eliminating all the confusion surrounding disk space. Finally, a non-technical user will be able to buy a computer with a "320 GB hard drive" and actually see it on the desktop as basically a 320 GB hard drive. In my case, the 250 GB hard drive in my MacBook went from being calculated as 232.57 GB in Leopard (10.5.8) to 249.72 GB in Snow Leopard (10.6). What happened to the other 0.28 GB??? Also, the amount of used space on my hard drive when in 10.5.8 was 119,724,933,120 bytes, when calculated using the following methods equalled: (Old) Base 2: 119,724,933,120 / 2^30 = 111.50 GB (New) Base 10: 119,724,933,120 / 10^9 = 119.72 GB And when I installed Snow Leopard, it most certainly did wonders for the drive's storage space. My MacBook is now showing that I've used only 111,079,096,320 bytes, which equal the following: (Old) Base 2: 111,079,096,320 / 2^30 = 103.45 GB (New) Base 10: 111,079,096,320 / 10^9 = 111.08 GB So thanks to Snow Leopard's disk space economy, I have now recovered an astounding 8,645,836,800 bytes available hard drive space, which is a mammoth 8.65 GB in Base 10 and 8.05 GB in Base 2. Walt Mossberg of The Wall Street Journal mentioned that he had regained 14 GB of space on one of his MacBooks, but that is slightly incorrect as he would have just looked at the Available space on the drive. If I were to do that, it would go from 121.06 GB available in Leopard to 138.64 GB available in Snow Leopard, 17.58 GB difference. That is taking away a Base 10 figure from a Base 2 figure, which is inconsistent and not right. As for other aspects of Snow Leopard, the whole system is a little faster with apps launching noticeably quicker, graphics definitely run smoother, the extra Exposé and Dock menu features are really nice and QuickTime X is surprisingly good (and I expected it to be not so robust and user-friendly). The extra desktop pictures and very slight refreshes to the user interface are also nice touches.