I am trying to understand if MobileMe is simply not working the way it is supposed to, or I am expecting it to function in a manner that it is not intended to. I have an iPhone 3G, a MacBook Pro with Leopard (10.5.4) using Mail.app, and MobileMe. I have my MobileMe email set up on both my Mac and iPhone, but even though this is IMAP, the status of unread/read messages remains curiously out of sync between devices. For example. If I get a new email and I read it on my iPhone, the fact that it has been read is never reflected in the MobileMe webmail or Mail.app. Similarly, if I read a new message on Mail.app, this change is not reflected in my iPhone (until a new email is pushed to my phone -- even if i open Mail on the iPhone manually and let it check for new messages, it still thinks that this message is unread. I guess it doesn't help that MobileMe webmail also thinks it is unread after reading it in Mail.app on the Mac...even after I force a Sync from the Mac.) What have been your experiences with MobileMe and multiple devices? Are the emails between them always in sync?