Very interesting statement. Because in some way this boils down to the original question people asked about the 770 when in was introduced years ago: "What is it? And: Why?!". And shows that there are still very different use cases for the tablets:

To me, the tablet does replace the desktop PC when I'm not at home (or too lazy to go to the other room). In fact, it's faster and more powerful than some of the PCs I work on every now and then.
So I expect it to act like a desktop PC and have the look&feel of a desktop PC. For everything else I have my mobile phone which I use for quickly looking something up in wikipedia when on the train or check my mail while waiting for the bus. I expect my phone to be simple and I appreciate everything I can do with it one-handed. (No, it doesnt have a touch screen, but it's still "finger friendly": I can use my fingers to press the buttons.)

Giving the tablet the same functionality would simply duplicate my phone, only much bigger. I don't have use for two devices that do the same, so I'd go and sell my tablet then.

But I can see now that people who want to use their tablets for the tasks I do with my phone might be attracted by a more finger friendly UI.

Maybe there shouldn't be a "UI for the tablets". There should be a UI for using the tablet as a mobile browsing device (=the "phone-use-case") and a different one for using the tablet as a micro-laptop (=the way I use it).