I've opened Practical Cloud Computing a few months ago.
We begun as an AWS proposal, but after a short discussion the scope was broadened to all cloud provider, not just AWS.
The main reason was the relevancy of vendor comparison questions (e.g. "Is there a CDN that enables anonymous FTP upload?").
Would you consider merging your proposal into ours? I think that we can move to the definition phase pretty quickly if we do so.
I know that this subject has been discussed before, and I think that it would be way easier to gather a critical community mass together.