iPhone UI intuitiveness
So, when designing an iPhone/Touch app, how do you decide how much detail to build in on using the UI? I recently was questioning whether or not to repeatedly tell uses that double-tapping the screen/view will toggle a menu. Is it intuitive to double-tap?
On the Mac, most people know about double-clicking and I don’t feel the need to let them know to do that. Option-clicking is a different thing and there should be a tool tip or doc that explains it. What do you think?
With the iPhone, we all see little kids that just start jabbing away and quickly figure out all the possible touch combos to run an app. Older, perhaps dogmatic(?) users take longer to figure things out.
To whom should one cater?