Open Sourcing Plugins

Hey guys,

this question is related to open source distrubution of JUCE. I came across information about (non)compatibility VSTSKD (2.4 at least) and GNU GPL, under which is open source JUCE released. Although I didn't stutied the licences by myself I read some archives of VST mailing list (you can too). Do you know is there any update about VST3? What about AU SDK? It seems to be ok, isn't it? Do you have any thoughts or resources?