Interested in this CMS, what need the server to start and at least one query in the second (closed alpha testing) treated? Am primarily interested in the RAM, without swap (VPS OpenVZ). Write about 200 MB is really as enough for the server or does this have 200 MB free before processing the first request?
And 100 queries per second (a very optimistic forecast of the workload for the project) how easy will it be spread across multiple nodes transparently for clients?