Unity 2.0.1 is now available. The update includes bug fixes, minor improvements, and the ability to serve policy files directly from Unity to movies running Flash Player 7.0.19.0 and later. Policy files allow cross-domain connections to Unity and connections to ports under 1024. (Prior to Flash Player 7.0.19.0, cross-domain connections required policy files to be served over HTTP, and connections to ports under 1024 were completely forbidden, even with a policy file.)
For more information on the new version of Unity, see:
http://www.moock.org/pipermail/unity-dev/2003-December/001740.html