"Beginning November 22, 2011, we will end support for the Gmail App for BlackBerry (installed native app). Over this past year, we've focused efforts on building a great Gmail experience in the mobile browser and will continue investing in this area," Google said.
This means that from November 22, Google will stop supporting Gmail application for BlackBerry devices and the Gmail applications currently running on the BlackBerry will no longer be maintained and enhanced by Google. However, users who have already downloaded the app may continue to use it, the company added.