I am thinking about getting an iPhone this week but I want to ask users how often they 'miss' calls due to Edge or other reasons. I have read that you *may* not be able to receive calls while using edge. Obviously this means browsing the net, but does this also apply if your phone is just checking for email behind the scenes? I have a Blackberry Pearl on ATT's edge which receives email immediately (I'm assuming it's constantly checking) and I never miss calls due to this - why would the iPhone be different? I have also read threads where people miss calls while their phone is in sleep mode. Can iPhone users out there elaborate on this? Is this an issue? How often do you 'mistakenly' miss calls? Thanks.