[pnm45678]

> Well, looks like we got a working uninstaller with a good user experience for free.

Yes, but the downside is that you're now relying on an unstable interface (as I understand it, this behaviour is not documented as a contract anywhere). Apple would be free to break you at any time.

[marcellus23]

True, but the worst that could reasonably happen is that the "X" button would go away and it would be just like every other non-MAS app.

[VWWHFSfQ]

The 2nd worst thing would be for apple to decide they don't like apps pretending to come from the app store and just block them from installing at all