Thanks, just wanted to change the name of my iPhone4.. You know like changing the 'hostname' in mac. The same way I wanted to change my phone's name to access wifi in my college. Actually, we have to assign proxy settings manually to access wifi in my college. But they have a condition, i.e...

I am not able to surf internet on my iPhone4, because I need to change the device name....... How to change the name of my device?? How to change the bluetooth name???