An application switching sound modes related to calendar events
On my N95 I used to have an application, which switched my phone to and back silent mode, based on keywords included in calendar event.
The application worked in the following way:
1. A keyword was specified to each mode. (I used to add the word "quite" to each event I preferred to keep my phone silent)
2. Whenever a set an event and added the keyword' the phone switched automatically to the set sound state for the time period of the event and switched back to the default sound setting afterwards.
Is there an equivalent application for iPhone 4?