You can sync BusyCal calendars on your Mac with the iPad, iPhone, and iPod Touch wirelessly through Google Calendar.

You must first configure BusyCal to sync with Google Calendar, then perform the following steps on your iPad/iPhone/iPod Touch.

To sync your iPad/iPhone/iPod Touch with Google Calendar:

1. Tap Settings on your device's home screen, then tap Mail, Contacts, Calendars.

2. Tap Add Account...., then tap Gmail.

3. Enter your Name, Email, Password and Description, then tap Next.

4. Turn Calendars ON.

   

5. By default, Google will only sync your primary Google Calendar with your iPad/iPhone/iPod Touch. If you want to sync more than one calendar, go to www.google.com/calendar/iphoneselect and sign in to your account.

Note: If you're using a Google Apps account, go to this URL: google.com/calendar/hosted/your_domain/iphoneselect, and replace "your_domain" with your Google Apps domain name (e.g., widgetco.com).

6. Select the calendars you want to sync with your iPad/iPhone/iPod Touch.

Your iPad/iPhone/iPod Touch is now syncing with Google Calendar. You can add and edit calendar events on your iPad/iPhone/iPod Touch and they will sync to Google wirelessly, and from there they will sync to BusyCal.

Note: You can also sync an iPhone with Google Calendar using Exchange Active Sync.