I made a very simple site www.abasi.info/viewport
Consists out of:
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<p><img alt="18" src="18.gif" style="height:55px; width:550px;"></p>
</body>
</html>
The numbers should go until 18. But with my Android Phone (Version 2.3.6) the viewport doesn't adjust. It is zoomed in to much. I just had this one picture in the site (nothing else). And if the above viewport would work it would show all the numbers in the pictures until 18. It is very strange.