More juicy details have now emerged from yesterday's now infmaous R4 court case, and the news is worse than we thought. The extremely thorough ruling details all devices and methods designed to circumvent Nintendo's copy protection, specifically covering "the shape of the connector arrangement of the slot on the DS and the corresponding shape of the game cards designed to fit into it; the boot up software permanently stored on the Nintendo DS, which checks for the presence on an inserted card of the Nintendo Logo Data File (NLDF) and prevents execution of programs present on the inserted card if the NLDF is not detected; and the use of shared key encryption technology and scrambling to enable the DS to detect whether game cards are authentic."

That means that any device designed to get around this protection using the above methods is now officially illegal, and the case itself specifically names the R4 DS, M3 DS, DS One Supercard, DSTT, DS Linker, Acekard, CycloDS Evolution, N5 and EZ devices.

It's worth noting that it is still legal to own flashcarts, just not to sell or advertise them. Readers interested in the exact details of the case are recommended to go read the full breakdown over at Eurogamer.