[ZackOfAllTrades]

Best thing you can do now: offer the dropship guy a job.

He knows your product well enough to "break" it and he has the motivation to create something strong enough that it is causing a fuss. Learn from Geohot. Don't scare away people who want to play with and extend your product.

[fragmede]

The original dropship guy isn't the one causing the fuss.

[alecco]

Very good idea. Or at least talk with him and find a solution both parties are comfortable with.