How can it be without printing capabilities though? Many people that use netbooks (such as my wife) are college students who type and print papers on a regular basis.
It won't be for everyone, but it will work for many. And by many, I mean MANY.
Again, won't work for all. Will work for many. Personally I hope for and anticipate a "OneNote-like" app that makes note taking with a stylus simple and functional. I don't plan to carry a dock with me anywhere, unless it's perhaps on a long trip where I will be based in a hotel and want to dock there.Also, Andy Ihnatko pointed out in his demonstration on Twit last night that the keyboard dock is not going to be practical to transport around because of the way the back support sticks up. One of the main reasons students get netbooks is they're light and easy to transport, and if it's a pain to bring the iPad dock to class then it's going to be a pain to take notes and such just using the touchscreen alone.
It may not be for you. It may not be for many. But it will be a game changer.Don't get me wrong, I am eagerly awaiting my iPad, but I don't really think of it as being a netbook competitor.