Hi everyone, I got my iphone on Saturday and am loving it so far but have a few questions regarding surfing the internet. I understand the wifi side of things so thats fine. When I have tried using safari outwith my wifi I have a blue square on my iphone where the wifi signal usually is. I can surf the net fine. I thought this was using EDGE. However, when I go to YouTube and try and watch a video, it tells me it can't do it as it needs a wifi or an EDGE connection, if this is so how am I on the internet? Is this using GPRS? Similarly, when I try and send an email it works fine if its using wifi but fails when I am not using my wifi and tells me it can't find the outgoing server, whats causing this? I can recieve email fine but can't send unless its by wifi. Third, is there anyway using safari, mail etc will charge me? I recently used my old mobile and was amazed at the prices for surfing the web on it, I want to make sure that however I am connecting on my iphone I am not being charged for it! Thanks for reading this and if anyone can help I would be very grateful!