As per title. Other than Giffgaff (local signal poor) who offers the best value for money plan? I'm looking for up to one GB per month. I currently use a £10 goodybag for my iPhone, but daren't buy their data only sim (£5 up) in my new tablet. I'm prepared to leave Giffgaff if I can find that deal I'm after, but prefer PAYG and no more than £15 tops, per month. Thanks AVFers.