Dev and qa have are completely different environments with no shared database or the like. Both environments will provide a webcast.json feed (representing dev and qa datastores respectively). BUT, both environments will serve the same ~700 records of legacy data which is all CalCentral currently needs. Rest assured that the webcast.json feed will always be available - it has no dependency on a running Matterhorn instance. With that in mind you can expect dev to be very stable.