In this tutorial, you explored the PIM layers of the BlackBerry platform. You learned
about a handy feature that lets you add your own functions to built-in BlackBerry
applications. Using the BlackBerry extension of the PIMList, you performed a very easy lookup to get the e-mail address
of a friend to invite to something taking place on your calendar.
Leveraging the open source technology of Java technology and the ubiquity of PIM data into a social-networking application for the most visible and revered mobile platform has great potential for bringing value to business and consumer applications alike. Who knows, maybe your social-networking application is the next Facebook or Twitter.
