So far there hasn’t been any signs that Google will be bringing a Google+ App to BlackBerry. Not to fear SCrApps has designed a launcher for Google+. After you open the app it will take you to the mobile version of the app to sign in but once you are signed in you will see the full web version of Google+. Now Launcher for Google+ shows as a trial app, and a purchase price of $0.99. Just a little note from the developer the “trial” version is fully functional, and if you want to donate you can “purchase” the app for $0.99.
You can pick up Launcher for Google+ here.