I bought my iPad about 6 months ago and fell instantly in love. A few weeks after buying it, I also picked up a Bluetooth keyboard to enable faster typing (I just can’t get fully accustomed to an on-screen keyboard). I found the combination to be extremely functional. In fact, I find I can get more writing done using the Pages app on my iPad while at a coffee shop than I can on my laptop in the office.
Apparently not everyone shares my opinion. If you’re thinking about purchasing an iPad as a productivity tool, you should definitely consider this article from Marco.org before making your final decision.