The 810 version was just a different version for people with different preferences.
The other keys [zoom+][switchview][zoom-] ... are placed where the thumb and forefinger rest.
The NIt should aspire to [be] better than the iphone not to imitate it.
If you only have a touch screen, then you're forced to solve certain problems in a manner that may not be actually be optimal, nor even close to optimal, for that form of input. For example, virtual keyboards -- a touchscreen implementation for solving the "how do I create text input", yet it's an incredibly poor way to implement that goal.