Hi folks, just need advice. I have just come out of my 12 month contract (£20/month..unlimited internet, 800 mins, 1600 texts) purchased through Quidco with £100 cashback. Is it worth keeping this going or should i purchase the £10 sim deal from Tesco with 500mb data cap. I have a HTC Desire so the unlimited data is a bonus at present. O2 cannot offer me a lower tarrif with unlimited data... What do you all think ?