My husband works shiftwork and my son works part-time, so I was looking for a calendar to keep track of their shifts. This is perfect. I love the monthly view where I can see their shifts at a glance (instead of just the meaningless dots on the Apple calendar). And I can even tell day shifts from night shifts by using different colour coding. The ability to copy also makes entering next weeks schedule a breeze. If you could add alerts/notification then I would use this as my only calendar. Apple should consider adding this as their standard product with the iPhone!
mrsgator about SaiSuke Lite