Today at I/O, Google rebranded “Hangouts” as a new unified,
cross-platform messaging system. It lets people text, photo, and group
video message across Hangouts’ Android and iOS apps, plus its Gmail and
Google+ site integrations. Hangouts rolls out today, replacing Google
Talk [GChat] and G+ Messenger. While it doesn’t support SMS yet, it
could challenge Facebook Messaging and Apple’s iMessage.

For over a year, whispers from
GigaOm,
Droid Life and others signaled Google would undertake a
big unification
of its fragmented messaging offering. Today Google will offer new free
iOS and Android Hangout apps, the Google+ integration, and you can
upgrade from Google Talk to Hangouts by clicking on your photo in the
Gmail chat list. There are currently no plans for other platforms like
Windows Phone or Blackberry.
Google’s Vic Gundotra said at I/O today in San Francisco that
“Technology should get out of the way so you can live, learn, and love.”
Operating systems and devices shouldn’t matter. You just want to talk
with those you care about. That’s the point of the
revamped Hangouts. It brings humans and conversations to the forefront.
Google Unites Gmail And G+ Chat Into “Hangouts” Cross-Platform Text And Group Video Messaging App