Is your phone too big to comfortably hold? Instead of getting rid of the beast, have you considered buying a phone bundled with a second, smaller Bluetooth-enabled phone for your talking needs? If this idea sounds completely idiotic to you, nobody told HTC, who built a phone just like that for the Chinese market. (ht @DJBentley)
This reminds me of when The Game got a jesus piece for his jesus piece, except if everything in the world was terrible.