Just trawling round as you do, and came across this one.
I know there have been 10 and 11 month free deals before, but I hadn't noticed a 12 month one, until now.
Obvioulsy it's a contract and cashback is via redemption, so if that's not something you are into then don't bother.
Some people get on well with these cashback offers, others struggle, but M2YD have one of the best "redemption periods" of all of them, it's normally 60 days which is a big window for any cashback offer?
Contract is on Vodafone at £40 per month, think it's 500 mins and 500 texts which isn't that good for the money but if it's going to be free then.....
Only seems to be on the pink one and it's a clearance phone (although the last one I had was like new just missing the memory card and the original box), shame it's not any other colour.
Like I say won't appeal to everyone, but might be of use to someone.
You can also go through Quidco for £45 profit, which is nice (Assuming all cashbacks turn up like)