Can you make online resource library accessible from within GD so we can share graphics, sounds, music and even complete games? Something like StencylForge (if you don’t know what Stencyl is, then shame on you - it’s a great tool for making flash games).
Then user will be able to send resources to GDShare (working title, you can change it to anything you want) from within program and also download resources posted y other users from it. You’ll be also able to make description for resource you uploading and GD will automatically select category based on type of resource (image, game or sound/music). You’ll also be able to enter tags so people will be able to search for your resource.
And the best part is that it can be just webapp accessed from GD by WebKit component.