It would be good to be able to see who is broadcasting in a camroom from the list in your own room, or the list of another room that you may be viewing. Also it would be good to be able to see who among your 'friends' are currently broadcasting. A Camera Icon displayed next to the username, for instance.
So I would see the Cam Icon against a username, click on the Icon to go directly to their camroom, rather than hunting for them in the online camroom list. (Which, IMO, refreshes too frequently - you can't look over a whole page before all the thumbnails switch around.)