The last few times I've turned on my 3DS I've been prompted to update again. It's not a big deal to ignore, but I can't access the eshop without updating, which is kind of a pain if I want to buy anymore 3DS games. My DSTwo is updated to the most recent firmware and works fine, and previously my 3DS was up to date, but I'm hesitant to update for fear of making the DSTwo unusable. Anybody try the new update?