I make some test with Html 5. I tried to export my Pick'Memory game (Flash at start) in Html 5. It seems to work.
Loading the game takes a little time, it's not 100 % quick, but I think that is because my game is not optimised for Html 5. This exporter seems to work very well I'm going to make some snippet tests !
If you want to see Pick'Memory run in Html 5 click : http://db.tt/ey9I7A2F