Phonegap isn't about merely packaging a website as an application. It's about using front-end web technologies to build applications. There's no rule against that, even if it's possible to use it to break other rules.
What there is a rule against is simply packaging a website up as an application. That's what this service does.
While you may get away with it, there's a strong chance you won't. It's only fair to warn people before they spend money.
Phonegap isn't about merely packaging a website as an application. It's about using front-end web technologies to build applications. There's no rule against that, even if it's possible to use it to break other rules.
What there is a rule against is simply packaging a website up as an application. That's what this service does.
While you may get away with it, there's a strong chance you won't. It's only fair to warn people before they spend money.