Originally posted by thibs
Oh there's a nice little ISO button there

Nice... only if you want never to use it!
I think Pentax understood that buttons placed on the left side should be devoted to menus, reviewing pics and things that you do when you're not shooting.
Buttons related to settings that you might want to change while you're taking pictures (with your eye to the VF) should be located on the right.
That includes the green button and ISO button of course.
I think (hope?) this is a photoshoped K10, mixed with a D80 for the (badly placed) ISO button.