All Faceflow requires you to have is Flash support. Faceflow is also supported for iPhone. You will easily find Faceflow in Apple store. Faceflow iPhone works great! I just checked the Android Market place for Faceflow but could not find it. Seems Faceflow is currently not supported for Faceflow. Need to find Faceflow Android App on internet.
I tried the Faceflow on my computer/Pc. Account creation takes few minutes. After you have created your faceflow account : you have two options : chat with friends or roulette chat.
In order to chat with your friends, you will be provided with a link which you can share. When your friends click this link, they can have video chat with you without even creating an account with Faceflow. That's really nice. No compulsion for friends to join Faceflow. Regarding the video call quality, the video frame rate is excellent, however, it seems they compromised a bit on video quality.
Faceflow also has random chat feature, a Chatroulette clone. You can be notified via email when you get a friend invite. So just try out Faceflow and let us know your feedback.