The Wowza team today announced a preview release of Wowza Media Server Pro which adds support for H.264/AAC playback as well as AMF3.
Looks like this space is hotting up and it didn't take the Wowza guys long to implement this feature. While there is no support for live H.264 streaming just yet it marks a significant step for Wowza. Whether or not we will ever see RTMPE implemented by servers other than FMS3 remains to be seen.