My question answered by Adobe: (Thought I would copy it here incase anybody else wants an answer)
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Hi,
We don't have an easy way for you to get it into DW right now.
We have a difficult way, building extension files, translators and Property Inspectors, etc, but that is not currently available.
We are looking into ways of providing widgets for DW on a quicker basis....
Wish I had a better answer.
Thanks,
Don

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