Profile switching application

[Guest raven2000]

Hi,

I am looking at the feasibility of developing profile switching application for Windows Mobile 6.0 Standard devices. I know applications that switch profile exist I have special requirements. Basically as a Muslim I pray 5 times a day and I find it very irritating when phone rings in middle of pray so I want to develop an application that will calculate new pray times daily and for configured period the application will change the profile to Silent/Vibrate and after the defined period is over changes the profile to Normal/Outdoor.

My day time job is developing Windows and Web applications using C# so I am proficient in C# but as I have never developed application for Windows Mobile I don't know quite where to start. I am also wondering what architecture the application will have, where to store user preferences.

I would appreciate any guidance.