You need not be a great genius to realize that the main objective behind the DSi thwart the piracy that was devastating the DS. Well, the DSi until it started well ...
... for a few months ... 
The DSONEi may be the new A4, a wheel loader ROM that matches the entry of the DSi cartridges. He probably can fool the new firmware updates for the Nintendo DSi (similar to what we saw before in the PSP) by means of updates of the firmware, loaded in the cartridge by a USB dongle that will come along.
We're a little confused about the adapter supports SDHC - probably through the DSi is only for saved games - but beyond that, it seems quite the DSONEi with R4 to store your data in microSD. We did not find any information on the shopping page of DSONEi but not be too surprised if you see him soon in the shops of pirated games.