As the leader in group video-chat, ooVoo's new mobile apps are the only major communications product offering users four simultaneous video streams at once on mobile devices, and hosting a total of up to 12 participants on one call, for free!

ENGADGET: ooVoo updates its iOS and Android apps to support four-way video calls

ChatOn has been upgraded to support video chat, and Group Play both allows for sharing songs in a surround mode or playing local multiplayer games -- when it's supported, that is.

ENGADGET

This means adding features to the Rebtel service such as group chat, voice messaging and video.

FORBES: Rebtel Poised to Upend Global Communication

An estimated 380 million people will use video chat services by 2015, according to NPD Group, a market-research firm.

WSJ: How I Built It: Video-Chat Tool Expands From Its Teen Base

Like many technology entrepreneurs, Jay Samit says he knew ooVoo LLC, a video-chat startup, was poised for growth last year when he heard a group of teenagers use it as a verb.

WSJ: How I Built It: Video-Chat Tool Expands From Its Teen Base

Zuck: Group Chat works on mobile, but obviously not the new chat design because of the small screens, and not video calls yet.

FORBES: Connect