Total Automation, From Settings to SMS.
* Triggers: App, Time, Day, Location, Hard/Soft State, Event, Shortcut, Widget, Timer, Plugins
* Actions: 200+ built-in, plugin support
* Tasks: loops, variables, conditions
* Scenes: design your own screen overlays
* App Creation: create your own standalone apps to share or sell! (Android 2.3+)
Trial: http://tasker.dinglisch.net/dl
Starter Guides: