Just think of all the Apps that aren't on this list yet too; all the ideas that are either too good to risk publicising, or legally questionable in certain jurisdictions and therefore being done anonymously?!
I wonder just how long the complete list of Apps would be at this point? Even if there are only half a dozen or so secret Apps being worked on now, I'll bet there are dozens if not hundreds of anonymous Apps created in the months following a successful launch of SAFE network.
It's going to be so much fun to watch totally unexpected and unheard of ideas suddenly appear with no warning! The USPs (unique selling points) of SAFE really lend themselves to anonymous App building imo. I bet there are loads of genius ideas trying to take advantage of the newfound digital freedoms.