We are redesigning the interface, and can certainly add a feature request to separate the webcams by default on GoToWebinar's Attendee Viewer. Thanks!
I attended a webinar run by GTW this morning and saw the attendee screen for the first time. I have been running webinars for years but only recently have move to using webcams alongside the PowerPoint slides.
What I discoverd was that it comes in split screen and allws attendees to manipulate what they are looking at either by dragging the tab between the screen or flipping. I was blown away with this but I'm not sure that this is what my attendees see.
The attendee view varies a little based on the device they joined the webinar from. Windows and Mac users that can run our desktop software have the ability to resize the webcam vs presentation window or even split them between screens if they have more than one.