Limited Edition Team GB Samsung Galaxy SIII in White or Blue.
Available on T-Mobile @ £26 per month for 24 months with 3 months redemption cashback from mobiles.co.uk (part of Carphone Warehouse).
Unlimited texts with either:
1) 1.5GB data and 100 minutes
1) 750MB data and 300 minutes
1) 250MB data and 600 minutes
Also £30.30 TopCashBack is available bringing the overall cost down to £515.70 or £21.49 per month.