well ive been on the o2 pay as you go, well i got it around 4 years ago actually! when it was still bt cellnet 'Genie' that gives you 300 free texts per month if you top up by £10 each month. However, you will find that these dont last very long and you end up paying loads of money topping up etc.. but the good thing about it is that you can only put on what you have got, and so only spend as such. the only reason im on PAG is because i spend so much time out of the country it s a waste of time getting a contract as id be wasting half of it. To be fair though, ive just ordered a new one from orange for 50p, when you register it you get the same package as on o2, 300 texts for £10 but the more you put on the more you get back. so if you put £30 per month which lets be honest if you are anything like me you will do more than that! you get 1000texts the following month. which in my scenario is much better than the 300 free for £10. the only downside is that you will always be a month behind, so for example if you put £30 on one month, it will only be the next month you get the texts, which i guess isnt that bad but some people may not like it. get yours today! haha oh you get 1mb download per month too which is always good for checking emails. so thats what i think is the best at the mo, oh and if im not mistaken, this offer is also available in conjuction with the 'upto 50% reward' too, so its a winner for me!