ReelPortal is an open source video chat/conferencing app that works pretty well. It's not as fancy, but you don't have to have any type of account to use it. You can also host your own server. It's cross platform capable too. I don't about how quickly development on this app will progress as I just found it a few days ago, but I think it's worth checking out if anyone is looking for a video chat alternative. This does not have the ability to make phone calls though. http://www.reelportal.com