Facebook announced a trio of related new chat products today: ad hoc group chat, a new chat design, and video calling powered by Skype. The ad hoc group chat lets Facebook users create group chats without first creating a group. The new design makes chat look better on wide screens. But the big announcement is around video calling, which we broke last week. You can try the video calling now. It browser-based inside Facebook, and is currently only one-to-one video calling. (Skype charges for group video chat). One ice feature is that you can leave your friends video voicemails if they don't answer, so it is both live and asynchronous.