ewanfisher - 12:36 pm on Dec 24, 2010 (gmt 0)
I am not sure of the best way to do this. But hear is the report I use for identifying what content is accessed by mobile devices.
"Visitors" -> "Mobile" -> "Mobile Devices".
Then set the custom column to "Landing Page" under "Traffic Sources".
I'm sure you could make a custom report to show the overall traffic not just landing pages and then match the OS to the different mobile devices eg Android, iPhone, iPad, Blackberry etc
Hope this helps. :)