Pirated apps show up in BlackBerry App World
Play Store, and then published it using a BlackBerry App World account. At one time, this guy had about a dozen apps up on App World that he had apparently stolen from Google Play Store. That number is down to about three now, but the developer is still receiving calls from BlackBerry users who had paid three times the price on BlackBerry from the price he charges on Google.
If you are a developer who writes for the Google Play Store, it might be a good idea to check BlackBerry App World to see if someone else is profiting from the fruits of your labor. And by the way, the suspected thief's account with BlackBerry remains active.
source: Reddit via FierceMobile