Samsung D900 mobile 12 months free on a 12 month contact via cashback. Choose the tariff, but you might as well go for the £45 per month, as you're getting it all back anyway. That's 800 free minutes and 500 free texts. No problems with e2save cashback deals, they even send you the redemption vouchers etc. If you use Quidco you will also get £36.50 back, making a nice little profit. I got this on Friday (only 11 months free - dangit) and the phone is unlocked to boot!