Some suggest that Apple will take actions against infringements of branded keywords.
If your mobile app marketing strategy is to leverage other apps’ branded keywords, there are some suggestions for you:
If your app branded keywords are used by other apps, make a formal complaint to Apple with no hesitation.
http://www.apple.com/legal/internet-services/itunes/appstorenotices/
Provide links or disputed content via searching forms in the “App Store content dispute” page.
Caution
The numbers of disputed apps are 50 at maximum in every complaint. List all the platforms, such as iPhone, iPad, and Mac if the disputed apps are available on those platforms.
Then you will get an automatic reply e-mail to inform you whether Apple receives your complaint. Following the e-mail, there will be a formal reply with complaint code. At the same time, the disputed party will receive a warning e-mail as well.
One thing you should keep in mind: the process of a complaint may take your 2 or 3 months. Another quicker way is to contact the disputed party to cease the illegal act with adequate convincing evidence. If it fails, dispute complaints are welcome at any time.