We have a number of calendars in our household. One for me, one for my wife, a shared one (usually used for anniversaries and birthdays) as well as one each for each of our kids. It would be really handy to be able to see all of those as native calendars on my iPhone. Despite the built in syncing and such, it’s not quite as straight forward as you might think.
It’s actually not all that hard though. Simply login to Safari on your phone and navigate to http://google.com/calendar/iphoneselect. There, you may have to login but then you’ll be able to pick the calendars you’re interested in syncing. Amen!