Launching the appstore via u3dxt

Does anyone know of any sample code for bringing up the appstore via u3dxt. We want to upsell to another app, without leaving the current app. Im guessing SKStoreProductViewController is the way to go. But some sample code would be good. Any ideas?

Yes. Please check this out: http://unity3d.tutsmobile.com/storekit-cross-promotion/