Updated 2/9/09: Just downloaded 1.6 and you can now enter recurring appointments/events. This application works beautifully. Only app other than "Smart Time" that I was able to find that could handle my to-dos AND appointments and scheduled events/holidays in one place with a very friendly and intuitive UI. Problem with Smart Time is that you have to page through one day at a time to see whats on your agenda! You cant view any week or month at a glance. Impossible for planning! Todo+Cal+Sync allows you to Left-Right swipe from a To-Do List screen (broken down in order of priority/date due), Monthly view, daily view, and a summary calendar view where you can see everything upcoming at a glance. All scheduled events can be color--coded and easily customized with whatever tags work for you. Break each tag down even further (such as family into kids, me, spouse). View all items on your calendar, or choose only the categories that you want to view by simply touching that category at the bottom of the screen. No problems at all syncing with scheduleworld.com. Another great feature: email complete to-do lists, not just one at a time!
me mom about Tasks+Cal+Sync