If you’re one of the people out there that own the R4 card for your Nintendo DS, presumably so you can download games off the internet, I have some bad news for you. With the release of the new DSi, the card will no longer work. I’m sure the people behind the R4 and similar cards will come out with a firmware update in the future, but for now if you’re in Japan (the only place it’s currently released) and were thinking about getting a DSi, but don’t want to risk your R4 card not working, I would suggest holding off. Nintendo seems to be actively persuing ways to thwart hackers from copyright infringement these days. It’s only a matter of time before the cards work again, so don’t worry.