|Iriel, AfterCast is a great addon. I'd love to use parts of it for some of my addons, and as I don't really want to add an (optional) dependency I'm wondering if you're planning to convert it to an embeddable library. This would especially be useful for addons that silently send information about current casts to other players and could easily enhance their functionality.
Simple example: oRa (the modular ace'd CTRA compatible raiding addon) would not send resurrection messages to others if a target is out of line of sight. Or all the addons that sync healing info could use it to properly send spell information. Etc.