You may have noticed your Wii glowing this morning (or last night). Turns out there is a new Wii software update, specifically regarding the Wii Shop Channel. From what the message said, the update corrects an issue that would allow some illicit game saves to run. Not sure if that is an anti-piracy attempt or something.
I ran the update this morning and my system shows firmware number 3.3U, not sure what it was before I started the update, though. Notice any changes on your Wii?