automatically two way synchronize mysql calendar data to google or ipad calendars

What actually works for automatically two way synchronizing mysql calendar data to a tablet platform? I would consider moving to to google or ipad calendars Bottom-line we have all out calendar events on a mysql db and need to syncroize with a tablet Would barely consider syncroizing with Outlook .. then would consider the new windows 8 mobility platform Please do not respond if you do not have extensive experience with google calendar or apple iphone/ ipad calendar synchronization