The Google Mobile team just released a new application dubbed Google Sync which allows the ability to sync your Blackberry’s calendar with your Google calendar. It requires the user to download the application directly to your mobile phone by pointing your phone’s web browser to http://m.google.com/sync.
Once you have downloaded and installed the software, it works just like the Blackberry Gmail application by requiring you sign into your Google Account at which then your two calendars sync. From there on end, your calendars will always be in sync thanks to Google.
You can also just input your phone number and Google will send you a direct link if you don’t feel like typing in your phone’s browser.