I was very surprised when I Googled the screen size for the iPad nothing showed up. I actually had to create a DIV and experiment until I found the correct size.
- The viewable area in landscape mode is 980×660.
You can also adjust the viewport via:
<meta name=”viewport” content=”width=device-width” />
which is what is recommended by Apple. I just thought this might be useful as you are measuring pixels for a page layout.