Thanks to the internal clock on the handset and the GPS, you can set your screen to lower the brightness by 20% at a certain time of day, or turn off the sound at a certain location. Not only can this function as a battery saver (increasing battery life by up to 30% according to Motorola) by turning on and off certain features at specific times or places, you can also use "Smart Actions" to make sure that your favorite website is up on the browser, refreshed and up to date when you get up in the morning. You can also set your phone not to ring while at a meeting. Motorola includes some preloaded and suggested rules to help get you started.
source: YouTube via Phandroid