Right, I'm heading off to sleep, but it looks like at some point we'll wipe the server and start again with a larger map, more industries, low breakdowns (This is normal, apparently) and disasters off, as I've noticed the UFOs destroying rail tracks. And if you're not on, that's a huge issue and destoys your profitability.
I do really like the idea of changing the day length. Its not officially in the game as of yet, but
here is a thread on the forums talking about it, and
this post contains a fairly up to date patch which adds the option. However, as these are patch files, they are designed for only one specific revision of the nightly code, and have to be manually compiled. However, in
this post someone appears to have compiled the r24093 build of openttd with the day/night patch. I'll give this a run tomorrow after work to see how it runs. I know that the 24093 build is from around 2 weeks ago, so should be pretty similar to the 1.2.0 release though I don't know the exact differences.