Here is a combination of actions that can be done in any situation:
* Change Ringtones, makes the phone into silent or loud, turn the vibration on / off, and all other profile settings.
* Responding to a missed call with SMS. Especially when you set your phone to silent, you also can make it reply to missed calls, from contacts in your phonebook, with pre-defined SMS.
* Save Power. Not using the phone for a while, like during sleep? Enabling Bluetooth on / off or let it change your phone into power saving mode in total.
* Change UI themes / Wallpaper. Want to make your phone look different in different situations? Change theme during free time vs. when you are at work.
* Open the Web or application bookmarks. Want to see the weather forecast for the day when you wake up? Look at the calendar as the first thing? Or open your favorite TV show page discussion on the show time? Or maybe change the Device Mode when in the workplace?
While the combination of circumstances which might be added:
* Scheduled. Set the time, day or event on the calendar active
* Location. Near (GSM location), current location (GPS), or From the Map (Ovi maps)
* Connectivity. Wi-Fi (if in range), Bluetooth
You can download Nokia Situations in:
http://betalabs.nokia.com/apps/nokia-situations