FaceFlow, is a cross platform video chat system for both browsers and mobile apps. This allows FaceFlow users to communicate cross platform as one would with the popular Skype interface.
BlackBerryCool recently reported that FaceFlow has discovered there are many BlackBerry PlayBook users who have been accessing their service from the tablet's browser, which in turn has given the company incentive to create a native app for BlackBerry 10.
I for one see this as a great addition. Perhaps it will bring about some more competing apps for us hungry BlackBerry 10 users out there. Discover more about FaceFlow, and get signed up free on their website.