A. D.'s List: iPhone Human Interface Guidelines for Web Applications

• your main goal as a web content developer is the same: to capture users’ imagination and earn their loyalty with a solution that is functional, focused, and enjoyable to use.

  • is it apple's goal?
• Above all, therefore, your iPhone content must be quick and extremely easy to use. You need to grab the user’s attention immediately and help them access the most valuable parts of your content quickly.
• Almost by definition, users use iPhone while they are mobile. Whether they’re in a car or a train, sitting in a cafe or on a park bench, taking a walk, shopping, or waiting for an appointment, users use iPhone in environments that are likely to be filled with distractions. This does not mean that your iPhone solution can’t or shouldn’t perform important tasks that require users to concentrate. But it does mean that you must be prepared for the probability that users will not be giving their undivided attention to your content, at least not for long.
• it’s important to remember that iPhone users can change the scale of the viewport by zooming in and out, but not the size. The only exception to this is that when users change iPhone from portrait to landscape orientation, the viewport size changes.
• iPhone users perform specific movements, called gestures, to get particular results.
• It’s essential to keep in mind, for example, that instead of the layered windows, desktop, mouse, and file system with which you’re familiar, iPhone has a small, fixed screen size, a browser interface supplied by Safari on iPhone, a touch-based input system, and no accessible file system.

• Safari on iPhone interprets most of the user’s finger movements as targeting the way iPhone displays your content, not the content itself.

  The main exception to this is the tap, which is analogous to a single mouse click, and which can cause Safari on iPhone to send the onclick event to your webpage. As you design your user interface, keep in mind that the users should be able to use a tap to access and drive all functionality in your content

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