I've posted a small document on Google, where I'll start to collect info regarding development towards the mighty Plex.
It's a sister document to this one:
And can be found here:
Check it out, and do chime in with improvements, suggestions etc.
Edit: 01 Aug 2014: Updated with info on how to find extra's
Edit: 22 feb 2014: Updated with info about how to access the media folder for an item via http
Edit: 17 feb 2014: Updated to use the http api instead of urllib when setting prefs
Edit: 9 feb 2014: srazer found out a way to update more pref settings in one go
Edit: 2 feb 2014: Updated with Language Api
Edit: 26 jan 2014: Updated with Prefs tip
Edit: 22 jan 2014: Updated links in the document