Kurt Shintaku's Blog

Check this out.  4 monitors used with Windows Vista:

A skeptical employee here at Microsoft put this together and is now, I quote, "convinced that large screen multi-mon configurations are a real productivity booster."

Some of the things he notes is:

• SIDESHOW REAL ESTATE:
  Sideshow (the bar with constantly updated news and message content on the far left monitor in the photo) finally has enough real estate to store everything that he likes to have available to him at the blink of an eye.
• HORIZONTAL INBOX:
  Dedicating a horizontal display (on the far right) for nothing but email is very productive.  It eliminates the need to actually open mails, since the preview screen has enough real estate to show everything about the email, and it keeps from ever having to switch application contexts. 
  …personally, I suspect that this configuration makes it possible to use another peripheral to switch between applications:  Your neck.  All you have to do, instead of constantly using your overworked mouse hand, is turn your head.  It’s an intuitive way of switching between applications – just turn your head to get to Outlook.
• FLIP3D:
  Flip3D, the feature of Windows Vista that allows you to scroll between multiple applications within a 3 dimensional environment that is called up by hitting WINDOWS+TAB works very well in this configuration of 4 monitors, moving applications from one monitor to another.
• TABS CONSOLIDATE BROWSING, ELIMINATE SCROLLING:
  Internet Explorer, is very productive now since with the inclusion of tabbed browsing, there’s little need to switch between windows.  Tabs switch pages quickly and easily, and more importantly, they always maintain the same window dimensions since the IE window in the 2nd to the left display is always maximized.
  He also notes that since the maximized window has so much real estate, it’s rare for him to have to scroll which is yet again, less work for the poor mouse hand.
• VIDEO MOVEMENT: 
  Video movement from screen to screen is very smooth and seamless.  He says moving a video from one area to another works exactly as it should.

He also comments on the "haters" that say this is no different from Windows XP:

Some people say, “yeah, well you can do this on XP too.” What I’ve noticed that’s different on Vista that makes a difference over XP is 1. Windows tend to stay where you put them better; 2. Watching video (or DX anything) in full screen on one monitor and then working on a window in another monitor does not cause the DX app to drop out of full screen; 3. The fonts are so much more legible.

This is all done with about $3000 in displays today.  With the upcoming drop in monitor costs over the next 12 months, he believes this will be a massive boon for users.

9.3 million pixels rules.  Something to consider for the Executive desktop if you really wanna "wow" them with Windows Vista.