The strings for the about screen are not translatable.
These are strings such as
"About the Wikipedia app"
"contributors"
"translators"
"This app was translated by the volunteer translators at http://translatewiki.net"
"libraries used"
"Send app feedback"
"A product of the Wikimedia Foundation"
The app name "Wikipedia", which appears at the top, needs to be translated as well.
I see all these in English in 4.0.4.0 beta #6, even though my iPod Touch's locale is Hebrew.
(That said, thanks a lot for adding a credits page!)
Version: Beta
Severity: normal