GrandCentral, which Google acquired in 2007, relaunched as Google Voice way back in March. It’s still technically in private beta, but invitations aren’t all that hard to find.
From what we’ve heard, Google is very seriously planning to add a version of the Google Voice product to its Apps/Office suite of applications for businesses. Currently, businesses are offered enterprise versions of Google Docs (online Office), Gmail, calendar and other applications. More than 2 million businesses and 20 million people use Google Apps.
