Well, I assume it works for both, only because when I compiled hello.c this last time, I used 510, not 500, and it spat out test500.html, not test510.html, but other then that I don't know. If you test http://nwplayer123.github.io/wiiu/hello500.html and it works on 5.0.0, then yes, they're for all intensive purposes identical.