I think it will benefit any iOS or Mac developer - couple days ago the famous Voices.com has launched its iOS app. If you don't know Voices.com is the marketplace for brands to connect with professional voice-over talent.
The app is free and can be found here - http://itunes.apple.com/us/app/voices.com/id493554377?mt=8
The app is free and can be found here - http://itunes.apple.com/us/app/voices.com/id493554377?mt=8