From a piece of code in OS X Lion can be derived that Apple plans to support iMessage to offer in the iChat instant messaging service. iMessage messaging is the new IOS in May, which you can chat for free. It works between iOS devices, but support on the Mac has not yet announced.With FaceTime is already possible to change between iOS and OS X for video calling.
OS X Lion And because a lot of features of iOS has taken over, it would be logical if iMessage immediately supported. MacRumors has found a piece of code from which it should appear. iMessage support is potentially in the iChat application already there, but Apple has yet to activate.
The code giving "timeDelivered 'and' read time 'that the delivery to instant messaging and reading messages. In today's iChat messaging protocols are not used in earlier OS X versions before they came not for the Lion. In iMessage they are used.