iOS Six Fix
For those of you that had to include the iOS rotation fix for the orientation and scale bug for mobile safari you can breathe a sign of relief, it’s no longer an issue with ios6.
When the meta viewport tag is set to content=”width=device-width,initial-scale=1”, or any value that allows user-scaling, changing the device to landscape orientation causes the page to scale larger than 1.0. As a result, a portion of the page is cropped off the right, and the user must double-tap (sometimes more than once) to get the page to zoom properly into view.
An excerpt from iOS Six Fix