The Remote Web Inspector in iOS 6 is limited in that it is only available for Mobile Safari and apps signed with a Development provision. That is to say - you cannot inspect any App Store app. If you were to test this with Safari 6 on a Mac, you'd get the same results.
The good news is that we're looking into ways to bring some form of the WebKit Web Inspector to Ion and Android devices as well.
All the best,
the Telerik team
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