Support for Google Sync for BlackBerry will end on June 1, 2012. The app will continue to work, but will not be available for download anymore. Google recommends Google Sync for BlackBerry users to switch to BlackBerry Internet Service or the Google Apps Connector for Blackberry Enterprise Server.
The mobile web app for Google Talk is being shut down completely. For current users of this service, Google recommends downloading the native Google Talk app on Android or any XMPP-compliant apps on other mobile platforms.