I have confirmed this, because I am downloading it now! I can confirm this update definitely does exist. It's not a required update so you have to goto the update option in the firmware settings menu. My flashcarts still work, so it was probably just a minor bug fix or something. Apparently it gives you access to some DSiWare updates and increases the speed of the DSi Shop. Source Original thread. By the way, Tempbot's report is messed up. This is the proper thread!