Sync multiple Google Calendars with your iPhone
If you have an iPhone, or any other smartphone for that matter, you will probably by now have set up Google Sync with it so you can synchronize your contacts and calendar.
However, if you’re a bit hasty and follow the simple tutorial that Google provides, you will end up synchronizing only your main calendar with your phone. It’s easy to miss the fact you can actually synchronize up to 5 (at the time of this writing) calendars.