The issues that the Surface addresses in terms of productivity are a lot more basic than the tech fundies are trying to make it.
For one, Win8 RT is really designed for people who are not power users. This means that they are less likely to be the types of people who use Adobe Photoshop for instance. This is one of the productivity apps that some are saying cannot run on RT and thus the Surface is no different from an iPad.
The difference in that is that Surface is Windows while the iPad is iOS. iPad means no Windows or Office.
Office is productivity for the light PC user. Thats the point I am making.
If you need to use Photoshop then you in all likelihood are in a better position to afford Win8 Pro as opposed to RT. If you need Photoshop you are not MS's target with RT.
MS Office is productivity.
MS Office is not on iPads.
MS Office is not on Android tabs.
MS Office is on the over 90% of the 1,500,000,000 computers currently in use.
Only 20% of the 1,500,000,000 computer's users can actually choose iOS over Windows because over 90% of the work that the 90% of the 1,500,000,000 computers is done on Windows Office.
For many iOS is not even an option owing to the fact that it is not Windows, it doesn't have Office. It is simply not a productivity device for that reason.