Came across this on my first google search.

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This will work without a jailbreak (- the unlimited skips hack)

IF JAILBROKEN on 7.0.4 - Download/install through Cydia - Pandora downloader Ver 3.5.2

Nav to the settings and enable unlimted skips/ no ads

I can confirm this works 

I live in Canada, my App Radio 3 connects to my iPhone 5S Pandora app on iOS 7.0.4  

Works perfect through that VPN hack

Enjoy. 

Don't work here in the UK.

I've been running with this hack since jan, still works for Canadians I guess.