I need an .....

[Alt0208]

.... app that will tell me who is calling on my n-gage whilst having the headset in, kind of like voice dialling but the opposite way around ???

Would be a good app as long as the callers number were in your phone!

Anyone agree ?

[Wouwz]

You can already do this.

Just open the desired contact and simply change the contact's ringtone to audiofile (u can also record it yourself)