Apple has rejected iPhone developer Maza Digital's Drivetrain application, a remote control for Transmission, a BitTorrent client for Mac OS X and other platforms. Maza received a rejection email from Apple, stating that 'this category of applications is often used for the purpose of infringing third party rights. We have chosen to not publish this type of application to the App Store.'

Maza suggests that Apple seems to have decided that any app that has anything to do with BitTorrent (even if the app does not download/upload anything!) is treated as doing something that 'is often used for the purpose of infringing third party rights,' and will therefore likely be rejected.

Interestingly, another iPhone developer David Muzi points out that his iPhone and iPod touch RSS application Trackr, currently available on the App Store, also lets users remotely queue torrents to start downloading to a computer running uTorrent or Transmission—functionality similar to what Apple rejected in DriveTrain. Trackr sells for $2.99.