What is MagicKey? Well it is an application for S60 which will replace the function of the keys on your mobile for all or specific applications only.
I hear you say, why would you want to do that? Well for me I like to use the volume keys in web browser to move up & down and in Google Maps, Nokia Maps & Camera to zoom in & out. I also like using the SPACE key to pause music in the homescreen.
I was going to detail how to do this here, but Rita over on Symbian-Guru.com has already done this and probably explains it better than I could 🙂
Make Full Use Of The Volume & Mute Keys On The E71 Via: Symbian-Guru.com.