Nokia Lumia 710 for sale or swap for other Windows Phone ?

Have a brand new 1 week old black Nokia Lumia 710 for sale. Only used for 1 week and handled with love and care. Screen still has official screen vinyl cover on it and accessories have been untouched and remain in the box as I used my own usb charger to charge it. All fresh and squeaky clean :) Scratch free brand new condition. Completely sim free, unbranded and unlocked for any sim network. Another reason to choose this phone is you can now developer unlock it to load custom roms or sideload apps for free. One of the few 2nd generation Windows Phone that can do this. Check out the Lumia 800 threads on XDA website for more details. Comes complete with charger, cable, headphones and a spare cyan coloured replaceable back cover as well as the black cover it comes with. All as standard. Am looking for a quick sale or a HTC Radar or any other Windows Phone preferably with 4