im not too sure about this, but if you upload it with the XNA Creators Club, you propably have to pay for it. though you can send it to microsoft and let them upload it as XBox Live Arcade game, then other people can download it for free.

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"Tag und Nacht schrei ich mich heiser,
Wind weht alle Worte fort,
Tag und Nacht schrei ich mein Krähenwort!"
Subway To Sally - Krähenkönig