I like it - the idea of a dvc/$ exchange, particularly for devcoin where it makes sense for a project that appeals to non-techies to have a way to buy them without first having bitcoin.
I think everyone is to fixed on the US dollar.
Even with a DVC/$ service most of the planet would need a $/useful service.
What we need is a DVC/useful exchange. Like localbitcoins.com .
That way everyone can get involved.
ThinkI