Hi, i have had my samsung E900 for quite a while now and fancy a change. I like the idea of having a touch screen phone because i am disabled and would find this easier to manage. However i am not sure what to get, from what i have seen its a choice between the samsung tocco or the new iphone but i dont know which would be better. I would prefer it to be on pay as you go and on o2 would this be possible? What prices are these phones? Are they good phones?
Any advise welcome

thanks!