For more information about differences between Vista editions, please see the chart at the bottom of page 12 of the 20 Things You Won't Like About Windows Vista story.

19. Integrated 64-bit support

There's not a whole lot to say about the 64-bit versions of Windows Vista except these two things: 1. The future of Windows computing is 64-bit. 2. The future isn't here yet. But I'm not damning 64-bit Vista with faint praise. It's important for Microsoft to do what it's doing, biting the bullet and distributing 64-bit Windows, in the box with every version of Windows Vista except for Windows Vista Starter (which is designed to sell with very low-cost PCs in emerging markets around the world).

20. Windows Vista Starter

I got into this business because I've long believed in the power of the computer to unify the world. Sounds lofty, I know. But I've always seen it as a communications device. And with the birth of the Internet, it became one. The only trouble with that vision is that huge chunks of the world can't afford or don't have access to computer technology and Internet access. Several industry initiatives are underway aimed at bridging this gap. And Microsoft's efforts concern only one such initiative, so it's not the only player. But Microsoft, in conjunction with AMD, HSBC Bank Brasil, Infineon, Intel, Lenovo, Phoenix Technologies, Transmeta and others have already tested both a new business model and specifically created hardware and software for a "pay as you go" plan in Brazil.