My first OTA to 2.0.5.6 broke my installation, as I didn't disable any repos or do what I was supposed to do. My fault! Anyway, this may be anecdotal, but now I'm on a "fresh" install (2.0.1.11 flash to 2.0.5.6 OTA directly) and I don't seem to have the notorious screen-on battery drain that we've been fighting since 2.0.2.x. At least nowhere near as bad. Whatever was updated must have fixed it.

Again, this could very well be conjecture, but through my testing I'm getting considerably less battery drain than before. I'm installing the latest mautz kernel and tweaking a bit. Will report findings. More to come!