Nintendo just released the latest version of the Wii firmware. It makes some pretty major interface enhancements to the channels menu, apparently. A few things I've heard of or seen so far:
1. A clock display in the channel menu
2. A new color scheme for the message board
3. Disk channel icon is different
4. Faster load times when going back to the channel menu
5. Faster game read speeds (sounds like BS to me)
6. You can now move contacts around in the address book
7. News headlines can be seen when clicking on the News icon, without actually starting the channel
8. Play time is no longer recorded as a letter on your message board
9. The blue disk drive light turns on when inserting or removing a disk
10. A few other minor cosmetic differences.
If you attempt to update, it may or may not display a message saying that this update can break a modified Wii.
Please post here if you update with a different chip, just to reassure anyone who is hesitant about the update. It just sounds like Nintendo is full of hot-air, though.