One of the most astonishing things about Vista, the modern operating system the Microsoft claims it to be, still can only use up to 3GB of your installed RAM in the 32Bit versions of the OS. So at the moment Vista can only use 3 of the 4GB of ram installed in my new MacBook Pro which sucks, at the moment Mac OS X can handle around 32GB with snow leopard introducing support for 16 terabytes of RAM!!!. The screenshot below was taken from Paul Thurrott's Win Super site preview of Windows 7 M3, notice how the windows rating section indicates 4GB of ram just above the 32 Bit Operating System notification.
Its late and I haven't even started reading about the technical advancements in Windows 7 so if there is any information about these types of specs revealed, please let me know :). This is a nice advancement though, even if its well and truly late. My biggest request for Win 7 is drop the different versions, at least to 2 version, one consumer and one corporate.
Update: This post has gained some decent attention (one of the top windows 7 search results) but for the wrong reasons. I want to clarify and apologize for the way I wrote this post. It was only intended to announce that the 32Bit Windows 7 can see/address 4GB of ram as Vista/XP could only address 3GB. Mac OS X 10.4 was designed to handle more ram due to the 16GB Powermac G5. *All* versions of Mac OS X Leopard are full 64Bit, able to handle up to 32GB of Ram though most current macs have a limit of 4GB due to the Intel hardware limitations. I compared Leopard against Win 7 not for their Ram limits but for the fact that Microsoft's big next gen OS is sold as 32 Bit, though 64bit is an option. Mac OS X mastered the 32Bit/64bit combination before vista was even released. Microsoft needs to step up and release a decent os that they just didn't copy from every one else, transparent windows to desktop? My ass, thats just a poor attempt at the basic functionality of Expose introduced in Tiger.