Okay, Thanks. Am I also correct in thinking that I could use just the one database but use a separate database prefix to achieve the same end?

Is it possible to use 1 Serendipity install with 2 Databases and call from them based on conditions such as:

-time of day
-geo-location
-ip address
-useragent

If so a brief outline and some pointers for where to start would be appreciated?

Thanks.