Update: Despite it now being common knowledge (on GBATemp and places like here) that the card is a *supposed* fake, the site has been updated to display a FAQ and a reasonable UI change anyway. Not saying it's real, but interesting anyway.
Original post
K3DS (I hope they're not the Crown3DS people) are rumored to have created a functional 2in1 3DS flashcard. This means that there would be no need for switching between cards for playing 3DS or NDS backups. Not much is known at the moment, but it seems quite exciting.
Update: We've been promised a review sample once (and if) they're made.
I'm just reading the card's info, it actually sounds rather promising based on these quotes:
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We support independend homebrew developers [...]
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But we don't support cheaters so no cheat engine is included.
And whoa:
Quote
But since that's not enough for us, we are also working on breaking the DSi mode to offer a 3in1 solution.
So if they succeed in that there will finally be a proper way to play DSi backups (I vaguely recall the Cyclo DSi although I'm not sure if that ever managed to run any DSi/Enhanced backup without issues).
All in all this sounds very interesting and I wish them luck. A team that's both innovative and has some kind of moral standard, what more could you want? a lot but this seems like a good start
I don't think it's a fake. The K3DS Team told me they haven't even started factory making them, the cards you see in the pictures are all prototypes. Once they'll start producing them they'll send me a review sample, so we'll see soon enough if it's legit.