I can think of one! I don't check my email on my phone since Apple required an IMAP email account. Checking an IMAP email account removes all email from the server. I don't want all of my emails to be stored on my iPhone. I want all of my email to be in one place (on my main laptop). Unless someone can tell me how I can change that, then I need to be able to have new cache notifications sent to my phone via text messages.