You guys keep selling the merits of the iPad so that my Apple stock can go up
Seriously, though, I just picked up my iPad 3G and am in the same situation. I got swamped in the lunchroom yesterday by coworkers clamoring to see it for the first time. Everyone is awed. But how exactly it will fit into my work life is still being sorted out. People do ask. I like to have a good response. I got the iPad for entertainment AND work.
The main productivity benefits I see right now are: much better email and calendar than the iPhone, ability to store and retrieve large PDFs (contracts, drawings, specs, etc.) in GoodReader without lugging around volumes of documents, and light editing in Pages.
Down the road, I may find some other very useful tools. I'm playing with "iAnnotate PDF" to do PDF markups, using a Pogo stylus. Works pretty well, though pen and paper is still much faster. But I'd like to stay electronic if I can. Great for road-warrior work.
I'm also playing with "Adobe Ideas", a great sketching app (and free). I can rough out an org chart for a marketing proposal, and email it to my marketing director as a PDF.
One minor dilemma I'm having is deciding when to bring it to a meeting for the first time, especially a meeting with clients. While I can think of many appropriate uses (bringing up a reference doc, checking my calendar, etc.), I also know it will be a distraction and even an annoyance for some. When I got my first iPhone it was similar, since back then serious business was only done on a Blackberry. But that changed.
I suppose since I manage my office, I'll get the benefit of the doubt and people will soon see that I'm using it for serious things. But it might take a bit of time for the iPad to become a mainstream item and the hype to die down.