Setting your Caller ID to the same address across all your iOS devices comes in handy if you are wanting to keep all of your iMessage conversations in sync (in real time) across multiple devices. Tap on Caller ID to set which address you would like your outgoing iMessages to appear to be from. Apple will then verify your e-mail address, and add it to iMessage. To set up your e-mail address for iMessage, you will need to enter your Apple ID, followed by the e-mail address you would like to use. If you are using an iPhone, your phone number will be the default receive at address, with the option of adding an e-mail address to receive messages at as well. Whether you are using iMessage on the iPod Touch, iPad or iPhone, you can set up multiple e-mail addresses where you'd like to receive messages. Go ahead and tap on it to set up the address(es) where you would like to receive iMessages. The last option that appears once iMessage has been turned on is the Received At setting. Currently, iMessage only works when either a Wi-Fi or 3G signal is present. With the Send as SMS setting turned on, iOS will route a message through your carrier via SMS instead of iMessage when iMessage is unavailable. If you opt to leave read receipts turned off, they will only be able to see when the message has been delivered.

With the option turned on, the other party in your conversation will be able to see once you view a message they have sent you.

The first option is the ability to turn on Read Receipts for your iMessage conversations. Once iMessage is turned on, you will see an 'Activating' dialog followed by some new options appearing on the Messages setting screen. If the switch for iMessage is turned off, tap or slide it over to turn iMessage on. To turn on iMessage, or to adjust any settings for iMessage, you will need to go into Settings > Messages on your iOS device. We are going to take a look at iMessage and give you some tips on getting started with the new iOS messaging service once iOS 5 is released to the public. IMessage was announced during Apple's annual Worldwide Developers Conference earlier this year, bringing a platform that rivals RIM's BlackBerry Messenger to all iOS devices.

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