This comes from an idea I posted over at my-symbian on the evolution of Maps on the Communicator. Given the open-source nature of Maemo, it may spark some developer interest here.

When you schedule an appointment, you should get a location field with the option to select either a Maps favourite or address from Contacts; if there's more than one address for the contact you should get prompted home/business/whatever address. When setting the alarm for the appointment, you would be asked if you want directions (driving or walking) to the location; if yes, Maps fires up automagically at the alarm time and off you go. If it were really swish it would work out where you are, how long you need to get to your appointment's location, add a suitable (user-defined) factor of safety and prompt you at the point you need to get going. All of the information is already on the device, but it's not very joined up.

Moderator edit: http://maemo.org/community/brainstor...r_integration/ (Brainstorm url)