BlackBerry Bridge is the free BlackBerry app required to connect your BlackBerry PlayBook to your BlackBerry smartphone to access the calendar, email and more. AT&T is currently the only carrier not supported by the app, but there is a workaround.
A workaround is available to download BlackBerry Bridge OTA at version 1.0.0.76 is available, and once installed should work even if AT&T is your carrier.
Click Here to Download BlackBerry Bridge for OS5
Click Here to Download BlackBerry Bridge for OS6