Firstly, its part of 10.3 ( I guess 10.2 is more of a patch) as I was informed by the player team and this will come around june( as per my last info). We are going to put it and update you once a stable build of 10.3 is available and whenever its available, we will try to get it simultaneously in LCCS.
Good news. We just released the beta version of Flash Player 10.3 for Windows, Mac, and Linux on Adobe Labs tonight. You can check out the new features of Flash Player 10.3 including the AEC feature now. Let us know what you think.