When they started having the 'max users' issue, I switched to having them 'pull' using HTTP from the image instead.. it's hosted on a dedicated XAMPP server and just provides the webcam image. No more 'max users' issue for me.
I am glad they re-thought their discontinuation.. now if they'll just polish it back up so no more 'max users'. Maybe they thought that removing the Webcam layer in the WU app was negative marketing (I hope).