Google launches a webcam based video conferencing app that would work with Chrome, Firefox 2.0+, Internet Explorer 7.0, and Safari 3.0 via non flash based plug-in. The feature will work in unison with GMail Chat and will be available via a camera icon next to a name in your chat list. The feature is probably focused on personal usage and not for corporate usage. I think this is just an added feature for the Gmail Chat service enhancing communication within your contacts. Yahoo messenger has all features plus allowing for sms and regular phone usage and Skype has one of the best internet phone service.