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iPhone THE MISSING MANUAL - Cdn.oreilly.com

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226<br />

Syncing With Multiple Computers<br />

In general, Apple likes to keep things simple. Everything it ever says about the<br />

<strong>iPhone</strong> suggests that you can sync only one <strong>iPhone</strong> with one <strong>com</strong>puter.<br />

That’s only half true, however.<br />

Yes, you can sync only one <strong>iPhone</strong> at a time to a Mac or PC. But you can actually<br />

sync the same <strong>iPhone</strong> with multiple Macs or PCs.<br />

And why would you want to do that? So that you can fill it up with material<br />

from different places: music and video from a Mac at home; contacts and<br />

calendar from your Windows PC at work; and maybe even the photos from<br />

your laptop.<br />

iTunes derives these goodies from different sources to begin with—pictures<br />

from your photo program, addresses and appointments from your contacts<br />

and calendar programs, music and video from iTunes. So all you have to do<br />

is set up the tabs of each <strong>com</strong>puter’s copy of iTunes to sync only one kind of<br />

material.<br />

On the Mac, for example, you’d turn off the Sync checkboxes on all tabs except<br />

Music, Podcasts, and Video. Sync away.<br />

Then take the <strong>iPhone</strong> to the office; on your PC, turn off the Sync checkboxes<br />

on all tabs except Info. Sync away once more.<br />

Then on the laptop, turn off Sync on all tabs except Photos.<br />

And off you go. Each time you connect the <strong>iPhone</strong> to one of the <strong>com</strong>puters, it<br />

syncs that data set according to the preferences set in that copy of iTunes.<br />

How’s this for an undocumented secret? You can use the <strong>iPhone</strong> to <strong>com</strong>bine<br />

several different address books—outlook on a PC and address Book on a Mac, for<br />

example. All your contacts wind up on all machines—<strong>iPhone</strong>, Mac, and PC.<br />

Suppose you’ve synced the <strong>iPhone</strong> with Computer #1. When you plug it into<br />

Computer #2, click the <strong>iPhone</strong> icon and then the info tab. Select the additional<br />

program you want to sync from—outlook, Yahoo, whatever. Click apply.<br />

When iTunes asks if you want to Merge info or Replace info, click Merge info. Now<br />

all of the <strong>iPhone</strong>’s existing addresses remain in your current address book, but it<br />

also copies the contacts from the second <strong>com</strong>puter to the <strong>iPhone</strong>.<br />

Chapter 11

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