I expect a bit more since I think as it stands now there are probably like 4 NA physical cards that work on the Vita TV.
I feel like it would have been a better idea to post a list of games that
do work.
# of games that are PS Vita TV compatible in
Japan (not counting other regions) - 481
# of games that are PS Vita TV compatible in
other parts of Asia (not counting other regions) - 434
# of Vita games available in the database in Japan - 731
# of Vita games available in other parts of Asia - 774
There are some repeats in these lists due to bundles, alternate language versions, and limited editions.
Freedom Wars btw is going to be PSTV compatible so that can be removed from the "doesn't work" list.