Blog post announcing: http://metaduck.com/post/2637829753/introducing-alfred-a-node-js-in-process-key-value
Alfred homepage: http://pgte.github.com/alfred/
I have been working on this on and off since November, after blogging this: http://metaduck.com/post/1618386212/my-almost-perfect-in-process-node-js-key-value-store
It's still experimental, but I plan to use it on my next coming node.js-backed project.
Feel free to try and comment.
Thanks,
-Pedro