I went ahead and updated my Wii and everything is fine. Seems like a lot of cosmetic updates and some new features for DS. I am running WiiKey 1.9s and NO homebrew. All my games still work when i tried a few, SSBB and Mario Kart. No problems to report. Will post if i have any issues throughout the day. I had read on some other forums that people were updating without problems...have not heard anything about Homebrew though...i don't run it, so i cannot confirm any changes to it.