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When it first came out (when it went by the name Apollo) I tried the example tutorials and such, and it is neat, but I don't have any need for it so haven't played with it since. I like the concept though.
 
I have. I am working on a Windows version of a widget I have created with AIR.

I unfortunately have not found any tip sites. I use Google and Adobe's Discussion forums for help.
 
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