How to sync your Yahoo! Calendar and Contacts with your iPhone

Got an appointment or a hot date you can’t miss? Want to turn your iPhone into your personal assistant? For those of you who own an iPhone 3GS or below, and run iOS4, you can sync the appointments on your Yahoo! Calendar to the calendar on your iPhone in a few easy steps. Once activated, you’ll be able to add or find your appointments whether you’re running around with your iPhone, or if you’re visiting Yahoo! Mail or Yahoo! Calendar on your PC. Here’s what you need to do:

If you’re an existing user:
Settings->Mail/Contacts/Calendar->Your Mail Account

If you’re using Yahoo! Mail or Yahoo! Calendar for the first time:
Settings->Mail/Contacts/Calendar->Add Account->Yahoo->Enter your account info and click next.

For iPhone 4 users, you won’t need to do anything because the new phone software will automatically activate your Yahoo! Calendar once you sync your Yahoo! Mail. You can also sync your contacts to Yahoo! by using the CardDAV protocol. Visit this page to learn how to set this up.

Going forward, you’ll see more ways to access Yahoo! Mail features on all types of mobile devices, such as the iPhone and Android phones, to help organize your life. In fact, we’ve seen tremendous growth after we activated Calendar sync for the iPhone 4. Since the iPhone 4 launched in June, many users have jumped on board and activated their Yahoo! accounts on the new phone, and we expect more to follow:

Try it out, and tell us what you think.