While generally a reasonable point of view, which I'm not really contradicting there are a couple of points worth mentioning:
1. Eliminating the keyboard dock makes sense just because the Bluetooth keyboard is a much better solution. I just put my iPad on a book stand when I use it, but Apple's regular dock would do as a stand. I don't use the keyboard that much - really only when I have a long email to write, or some text to write that I want to capture while it's in my head, but when I do it's vital.
2. Pages and numbers are actually quite popular on the App Store. Maybe that's because people haven't figured out that they aren't going to use them but I'm not so sure. I don't have a computer at home anymore, and occasionally I need to print letters (e.g. To the bank, to landlords, etc.). For this kind of light usage, Pages and an AirPrint printer work very well. For domestic use that's really all most people need. But without pages or an equivalent I simply wouldn't be able to do this.
So a less sweeping view is that doing light office tasks is actually very important for the iPad to be viable. It's just that it's solved now and the keyboard dock isn't needed.
But I don't use Pages (etc.), and none of the other iPad owners I know do either. What Marco seem to be wondering about is the killer functionality that absolutely everyone will be using the iPad for.
However, I think we've already found it: the web.
Maybe that's not the only thing the iPad will come to pass as the definitive device for. But it's certainly off to a good start.
1. Eliminating the keyboard dock makes sense just because the Bluetooth keyboard is a much better solution. I just put my iPad on a book stand when I use it, but Apple's regular dock would do as a stand. I don't use the keyboard that much - really only when I have a long email to write, or some text to write that I want to capture while it's in my head, but when I do it's vital.
2. Pages and numbers are actually quite popular on the App Store. Maybe that's because people haven't figured out that they aren't going to use them but I'm not so sure. I don't have a computer at home anymore, and occasionally I need to print letters (e.g. To the bank, to landlords, etc.). For this kind of light usage, Pages and an AirPrint printer work very well. For domestic use that's really all most people need. But without pages or an equivalent I simply wouldn't be able to do this.
So a less sweeping view is that doing light office tasks is actually very important for the iPad to be viable. It's just that it's solved now and the keyboard dock isn't needed.