Unfortunately, I do not have an IPAD to verify this, but one of our end users does. She indicates that the default reportlets that show up in Site Overview are not in the ipad app and it asks her to create her own. She has an older version of the app and she has NO PROBLEM seeing the site overview. It's the newer version she has a problem with.
I'm going to guess this is a feature enhancement--see ticket:130912-000353