Everyone by now have upgraded to the latest release of iOS. If you haven’t, here is a good link on how to go about upgrading your iOS device.
One of the key features of iOS 5 is iMessage, which is basically instant messaging for iOS devices (similar to but way better than BlackBerry Messaging). It promise to sync your conversation between your iOS devices in a way that conversation started on your iPhone can be continued on your iPad and so on and so forth. If you’re an Apple fanboy like me and currently owns an iPad and an iPhone, this feature of iMessage is quite handy.
But how do you set-up iMessage to sync across your iOS devices? Easy, you just need to make sure that your Apple ID is your Caller ID in all devices you want to sync. To do this, just go to Settings>Messages.
This set-up is most important for iPhone users since the default Caller ID is your mobile number. Once you changed your Caller ID, end all iMessage conversation. Any iMessage sent to your Caller ID moving forward will be synced across iOS Devices with the same ID.
If you see a conversation not syncing across your devices, this can only mean that the message was sent thru a different ID (i.e. sent to your mobile number). To resolve it, just clear the message and reply with a new conversation. This will prompt your iPhone to trash old conversation (via mobile number) and initiate a new one using your synced Caller ID.
The solution is quite brute but it beats registering/announcing your PIN every time you change your device. I do hope Apple streamline this process in the next iOS update.
For now, let the conversation flowing in iMessage :)