But now there's a solution. Starting today, you can use Google Sync for mobile to synchronize your BlackBerry handheld with Google Calendar. Simply go to
http://m.google.com/sync in your mobile browser to download and install the Google Sync for mobile application.

Once installed, simply click on the Google Sync icon (which looks like this):

Then, sign in to your Google Account or your Google Apps account, and that's it. The Calendar application on your BlackBerry will always be synchronized with your Google Calendar. You can even edit events or create new ones on the handheld.