The update basically changes Wii Points to Nintendo Points. I'm surprised they even bothered to do it this early outside of Japan, since we're not getting the DSi for a long time.
I'm not convinced about the camera resolutions -- every credible source I read had 0.3 MP for both lenses (hence my assertion that it's just a single camera with two lenses). Please show me a good source for this 3.0 MP info.