Prince McLean, AppleInsider
Snow Leopard’s across-the-board leap to 64-bits, from the kernel to all of its bundled apps, will do more than just make more memory available. It also exposes a great PC swindle and highlights Apple’s lead in 64-bit computing. Here’s why.

Following the initial introduction to 64-bit computing leading up to Snow Leopard, this second segment takes a look at the issues related to the amount of RAM that can be installed and actually used by the system. Additional segments will examine how much memory a specific app can reserve for itself, how the OS gets faster with 64-bit addressing despite the additional overhead involved, how the market for 64-bit apps is unfolding, and how Apple is pioneering 64-bits on the desktop.

Road to Mac OS X Snow Leopard 1: 64-bits
2: 64-bits, Santa Rosa and the great PC swindle
3: Twice the RAM, half the price, 64-bits
4: the future of 64-bit apps