I generally go for service pack 1 or 2nd generation devices before I make the leap, and with the iPad, I'll likely do the same. However, as an author I am intrigued by the device.
My Kindle is wonderful, but best for reading fiction. When I do research, as I currently am for my next novel, I need to read books that often include a lot of graphics. Likewise, I would love to have my magazines on my device, in color with all the images next to the text. Also, I often find I need to look up something on the web to get more information while I am reading about it . While my laptop can do these things, the size is limiting in bed and at the coffee shop.
If the iPad can do these things for me, I'll likely be a buyer! Playing games on it would simply be icing on the cake