If I well understand, PhoneGap needs an AppleDev Account to build IPA file. Because I usually build app for only personal use (for now), I don't really want to pay $99 for it.
With Sentenza, I can directly export as IPA file. But maybe I'm wrong and PhoneGap can export directly to IPA files. If it does, I'll reconsider my use of Sentenza.
Otherwise, I put a Firefox screenshot to show you that not only cause of Sentenza. All html5 files that I've exported from C2 R68 have this popup persistant....