[brucehart]

I have a little experience working with Google Calendar. You should be able to add events to other calendars if you authenticate with an account that has appropriate permissions (just like you would in the Google Apps interface). You'll need to use the CalendarId of the coworker's calendar in your requests, which you can retrieve using the calendar.calendarList.list function.

[vrikhter]

"if you authenticate with an account that has appropriate permissions (just like you would in the Google Apps interface)"

Do you mean that each user will have to add this app to their Google account? Mind if I send you an email?

[brucehart]

Yes, you can reach me at bruce.hart AT gmail DOT com .