Source: CNN Facebook has scheduled a Wednesday news conference to announce the launch of what it termed "something awesome." The leading theory is that the company will unveil a video-chat feature powered by Skype. Facebook didn't provide any details in an e-mail inviting media members to the event, to be held at its Palo Alto, California, headquarters. But CEO Mark Zuckerberg promised last week it would be "something awesome." Zuckerberg was touring Facebook's engineering site in Seattle and wouldn't give [...]