If you are in any way interested in Mobile Phone techology, the announcement by Apple of their "iPhone" was probably something you watched with great interest. It's definitely a gorgeous piece of design, and I love their user interface: being able to zoom into an image by simply widening the gap between your fingers pressed against the touch-screen - that's brilliant, that's what that is.
I read an interesting topic on Pocket PC Thoughts that discussed how while Apple is moving completely to touch screen, Microsoft seems to be moving more towards non-touch screen devices and more support for keyboards, with products like the Dash and Q.
My own view is that I don't care if the UI is controlled by a keyboard or a touch-screen, I just want it simple and intuitive.