When Google launches new services, they often gets a lot of hype (see: Wave, Buzz). Unfortunately, they don't always live up to that hype (see: Wave, Buzz). But one service that Google launched last year definitely has: Google Voice . Sadly, it has only been open to those with invites. But starting today, it is open to all. Google Voice started as GrandCentral, a startup launched in 2006 to revolutionize phone management on the web. Google quickly snapped it up in 2007 for over $50 million. For the next two years, it went through a metamorphosis. During that time, some wondered if it was yet another service that Google bought and let die. But in 2009, it emerged as the Google Voice butterfly.