Recently I got the iOS 5 beta installed. I'm testing out the iMessages program and for the most part, I like it. However, I'm wondering if it's just me or that the program is a bit slow to send messages? Sometimes it seems like it'll take ages to send a message. An exclamation mark with a message that it's waiting to deliver will appear for as long as 5 minutes before the message is sent. What's going on? Also, are the messages backed up when I do an iTunes backup? If not, how do I do so? Will the messages ever be backed up to iCloud? Thanks!