One of the examples Meraki uses for its Video Surveillance webinar cited Sweet Briar College's case study in which they added 70 MV cameras to watch over the entire campus indoor and outdoor. I don't believe there is a limit. If there is, I have not seen it published yet.
Are there any plans to have more than 12 cameras on a video wall? I understand you might be working up against a browser limitation, what about a dedicated app or program for viewing more than 12? I have 18 cameras and counting, and previously we had all our cameras on one screen. Now I can only have 12. This is very frustrating for us, and for our users. Any ideas?