I'm an android user only because I use gmail for all my email addresses (1 personal and 1 work email). Can you answer the following questions related to iOS4? 1. Can I change the sender email address in iOS4 email app without going thru settings? 2. Does email app support gmail's "reply from the address the message was sent to?" 3. Does the new threaded email look similar to gmail's conversation? 4. I heard about iOS4's unified inbox feature. If this is what I think it is, I can pull personal emails from gmail and pull work emails from MSFT Exchange server. But I want to archive all work email communications in gmail. Specifically, I want the work emails that I receive and reply stored in gmail server. How do I achieve this? 5. Does iOS4 support multiple MSFT Exchange?