That's a very slick bit of interface design.
However, firm presses don't sound great for stability, especially when hand holding- I like to take a lot of pictures in rubbish light and hate tripods, so that would worry me.
The other thing that would worry me is if you're expected to chimp off the back screen while using it- one of the things that most represents a tradeup for me with a DSLR over my compacts is being able to use the viewfinder, and top LCD, and have nicely laid-out physical controls. That's actually half the value of the format for me- being able to do 99% of the things that I need without having to turn the rear LCD on, which messes with battery life terribly, and is extra-nasty on sunny days.
Still, it is a lovely bit of interface design!