its a general issue a have with touchscreen-based devices. there seems to be a tendency in the industry that touchscreen is the superior input mechanism, and if you need any hw buttons, your UI design is wrong.

this may apply to touch-based appliances you find in libraries, fast food restaurants and railway stations. it certainly isn't true for mobile devices that are designed for your pocket.

i cant understand, for example, what was wrong with the "full screen" button we had on the 770/N800/N810. easily accessible, didn't disturb any screen interaction, great solution.

also, the menu-key and the possibility to navigate menus with the d-pad was a more than welcome addition to the touch screen when you absolutely needed to operate the device one handedly. (this looks odd. handedly? is this still english?)

leaving all this out and declaring "touch screen is king" reminds me of the photoshopped super-skinny models for ralph lauren that people discussed everywhere a few weeks ago: they overdid it. it's too much.