"These days, we all have our data spread around the Internet, with our work address book on an Exchange Server, a personal address book on Google, and maybe even a second one on Facebook. The webOS has been designed to present the user with all this data, without regard to where it is stored.

The webOS address book displays all the information available for each person from multiple different sources. A single person's entry could have, for instance, phone numbers from an Exchange Server, a street address from Google, and a picture from Facebook. All of this would be displayed to the user together, without regard to where it came from." -Brighthand