Crown3dscard.net seems more fake then crown3ds.com -
a) registered later
b) mentions needing an update for 3d games, implying it plays ds games. The original announcement said nothing about ds games.
c) Says "Now it is the first R4i 3DS card called the crown3ds" on the site, which implies a clone
To sum it up, I think there just trying to capitalize on the publicity with another r4 clone, which will never get a 3ds update. As for what I presume is the original team at the .com, Not really holding my breath.