I’ve been using Google Voice since it was GrandCentral back in the day. One of the things that lacked was an on device application to control your mailbox. Google has just introduced the new Google Voice for BlackBerry, which allows you to view and listen to voicemails, SMS (text message) people and place calls right from your BlackBerry. It’s a free application as long as you have a Google Voice account (which is currently by Invite Only). If you want to download the App head over to m.google.com/voice and get it.