Using Google Hangouts in my mobile, a complete replacement for Google Talk. An unified messaging system for Android, here we can share pics, Conf video calls, Conf messaging, 100s of smileys, but think once before upgrading bcoz you could not revert back to Gtalk. Hangouts won't support online contacts instead you could send message at any time without any restrictions like offline, busy away etc., Soon SMS integration is coming on. Its a latest upgrade released by Google two days back, I hope this will increase the Google+ traffic and a big blow for Facebook and WhatsApp... :) I'm feeling little uncomfortable with Hangouts bcoz unable to see my online friends :(