When you transition between smartphone devices, it is essential that you transfer your personal data -- contacts, email and calendar, for example -- in its most current form. You can use iTunes to export your contacts from your iPhone, for example, and also create a backup of the information in Entourage or your Mac's Address Book app. In addition to iTunes, you will also need to use the BlackBerry Desktop Software for Mac so you can complete the data transfer by importing the contacts into your BlackBerry Storm.

Step 1

Connect your iPhone to your Mac using the USB cable. Allow iTunes to automatically launch.

Step 2

Select your iPhone from the list of available devices and click the "Info" tab.

Step 3

Ensure "Sync Address Book Contacts" is enabled and click "Sync" at the bottom of the window.

Step 4

Eject the iPhone from the computer when the syncing is done by clicking the "Eject" icon, resembling a horizontal line with a triangle, next to the device's name in iTunes.

Step 5

Connect your BlackBerry Storm to the computer using a USB cable. If the BlackBerry Desktop Software does not automatically launch when you connect the smartphone, select the "Applications" folder and double-click on the "BlackBerry Desktop Software" icon.

Step 6

Select "Contacts" on the left and ensure the "Two Way" option is selected for contact syncing. From there, you can configure contact syncing to your preferences. For example, you can click "All Contacts and Groups" to transfer your entire list of contacts or click "Selected Groups" and then place a checkmark next to one or more contacts and groups.

Step 7

Click "Sync" and allow the computer to transfer information to your BlackBerry Storm. When the process is complete, safely eject the smartphone device by clicking the "Eject" icon, resembling a horizontal line with a triangle on top, at the bottom right.