Nintendo has unleashed another Wii System update, this time moving the number to 3.4. So what’s in it? USB Keyboard Support for Mii Channels, Enhanced Parental controls (hah) and system functions have been improved. Just what system functions is Nintendo referring to? Why, SD read and write speeds of course. According to reports copying channels to SD cards has been greatly improved. For those with homebrew and other additions to your Wii that aren't Nintendo sanctioned, it may be best to wait on updating your console unless any surprises are in the update..