SWAP HTC ONE X FOR A SAMSUNG GALAXY S3 ?

HI, I WANT TO SWAP MY NEW HTC ONE X (ON TMOBILE) TO A GALAXY S3 (EITHER UNLOCKEF OR ALSO ON TMOBILE) ITS LITERALLY ONLY TAKEN OUT OF THE BOX. ALL ACCESSORIES STILL NEW AND BOXED. PLS EMAIL OR PREFERABLE SEND TXT. I CAN MEET ANYWHERE IN LONDON AREA MANY THANKS 300 minutes 9 (+ 2.50 for 250MB data, optional) 600 minutes 11.50 (+ 2.50 for 500MB data, optional) 900 minutes 16.50 (+ 2.50 for 1G data, optional) 5000 minutes 21.50 (+ 2.50 for 2G data, optional) No minimum contract term. Keep your number. Very low rates for pay as you go option. Latest mobile phones available under excellent deals and benefits! I am selling a iPhone 4 16gb in black the phone is like new condition had screen protecter back and front on since new and always been used in a case There is not a scratch on the phone also comes with over 30 worth of designer cases Looking for 250 Ono only selling due to getting a upgrade phone is locked to Vodafone Thanks for looking please get in touch with any questions :) cash only no swaps and will not post as to meany scammers online could meet or deliver depending on distance thanks again Matt Android Tablet 1.5ghz processor, 512mb Ram, 4gb Memory upgradeable to 32gb, 7" Screen, Wifi built in, 4 way g-sensor + Gyro scope built in, HDMI port, Mini USB port + USB Host, Google-playstore ready, front face camera for video calls, Windows 8 interface and the only tablet in the market that has this feature, Access to thousands of games & apps just like the i Pad...!!! HTC DESIRE S BLACK USE