It does not appear to be ready yet.
I have been waiting since the original announcement back in January.
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Based on the latest Intel PR, the Edison will be based on the Atom SOC rather than the Quark.
They seem to be going for higher performance, although the single threaded Quark does just fine.
This looks like a mix up of latest news
The Edison will have some minor changes but still bases on the Quark. The new Minnow Board Max is Atom-based.
"...decided that in order to best address a broader range of market segments and customer needs we will extend Intel® Edison to a family of development boards. ... Notable enhancements include the use of the leading-edge 22nm Silvermont dual core Intel® Atom SOC"
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