Height: 60px

Width: 60px

Resolutoin: 72ppi

On iPhone, the viewport is specified by a "width" and a "scale", examples:

<meta name="viewport" content="width = 320" />
<meta name="viewport" content="initial-scale=2.3, user-scalable=no" />

There is no need to install an iPhone application, all you need is a URL of the application. You run the application through Safari web browser on your iPhone.

iPhone applications are developed based on Web 2.0 and AJAX technology, therefore, only a browser is needed to run these applications. On iPhone, the default browser is Safari.

It is a good idea to bookmark an iPhone application for a quick launch later.