I'd say a touch keyboard *is* meant to accomplish the exact same thing that a physical keyboard is. It is a method of getting words from your head into the device. Part of the problem is simply that the keyboard is on the screen, so it ends up getting in the way and you end up staring down at your tablet in a rather uncomfortable position. Microsoft's cover offers a reprieve from that experience, allowing you to choose your method of input.
I agree that the iPad is a good media consumption device, but it seems like the void the iPad fills is just so small compared to either a smartphone or a laptop/ultrabook. It's obviously selling well enough, but I'd be curious to see how often people use their iPads versus how often they use their desktop/laptop or smartphone.
It's clear to me that tablets are not something that have been figured out. Apple's made probably the best attempt so far, but there's still plenty of work that can be done. I'm interested to see how the Microsoft experiment goes, and how it shapes future devices.
True, a keyboard is just that, and both kinds perform the same function. I was referring to the amount of typing each was intended to perform. Aside from apps that attempt to offer writers an opportunity to play, the majority of apps require very little text input. Laptops still have their strengths and are better suited for certain goals. I can't understand, however, why someone who needs a keyboard doesn't stick to laptops rather than try to make the iPad into one. A trackpad for a touch device? That's anti-progress.
Meanwhile, I think consumption is the dominant activity among computer users. If not, iOS devices would not be outselling Apple's other products. Outside of their 8 to 5 job, few people are creating; the majority are following, friending, gaming, and exploring.