SQLite server
Based on the latest libdrizzle that I talked about yesterday, Eric Day created a server for SQLite databases with the same wire-protocol as MySQL.
Recently we have seen people re-using the memcached wire-protocol on other projects. This allows those new projects to come up with clients for most languages practically from the start.
I wonder if the same will happen with the MySQL wire-protocol, now that a lot of the work is done by libdrizzle...