Mobile Setup: Blackberry

  Options for access
Access most Google Apps in your BlackBerry's  browser app. Just point the browser to, touch the app you want to use, and sign in to your Google Apps account. 
Mobile apps overview

Here's a look at just a few of the apps you can use on your BlackBerry:

Gmail Send and receive mail. Watch video
Google Calendar View and add calendar events. Learn more
Google Talk Send instant messages.
Googe Docs View docs. Learn more
Contacts Access and update contacts.