While waiting for Apollo check out Janus. It`s a tool similiar to zinc but on the first look much more stable and powerful. Currently it`s in beta and you can download a trial.

• Janus let’s you create powerful multiform .NET 2 Windows applications adding a huge set of ActionScript 2/3 packages.
• Project settings are stored in a manually editable XML file.
• Janus supports skins and re-skinning at runtime.
  Skin-Builder tool distributed with the application.
  

Adobe Flex™ and FDT™ users:

• Janus compiles your projects as external tool from within Eclipse IDE.

The interesting thing is that it seems that Janus first was a project in the MDM space. A while back there was a beta forum were an application was listed called Rebus. It seems that this has now become Janus and is now independent from MDM.

Anyway i have a feeling that Apollo will soon be in the labs (do i hear MAX…)