Well, for work, people normally use it for emails on the go. Check out financial news, magazines, newspapers and of course making notes. For making notes, with the stylus is much easier I think...
And also there's a super good organizer for planning as well as contact book...etc...

In the future, OS4.2, there will be wireless print, so you can print your documents wireless from the Ipad to a wireless printer.

Plus I am sure there are apps on the market which will definitely help in your work, you just have to search for it.

Maybe this article will help, showing how this person use it for work, and there's also a Top 20 Apps for Ipad...
But its is well known that Ipad CANNOT replace a pc, you still need a pc to do some of the more hardcore stuffs...

http://blogs.techrepublic.com.com/hiner/?p=5941&tag=nl.e101

This article is also good: http://blogs.techrepublic.com.com/hiner/?p=4137

This post has been edited by zhou86: Sep 22 2010, 01:36 PM

PPT is powerpoint file. XLS is excel...