Well the answer to that question is that...you can play backups of games if you lost your original games...(Like I do) You can play N64, SNES and SEGA console games on your wii! With the appropriate emulators...and you can use homebrew applications (There are loads of them http://wiibrew.org/wiki/List_of_homebrew_applications) Then you can also unlock the hidden DVD movie player, if you have a version older than 2010, or if its newer, then you can unlock the USB movie player!
Just one simple thing..."HACKING A WII UNLEASHES ITS TRUE POTENTIAL!"
This is a 100% legal! (Unless you go and download pirated games,even though you don't have the original games...) (So don't do that!)
This softmod/hack works for any wii! Old Wii's, New Wii's, VIrgin Wii's, Korean Wii's, Japanese WIi's, Softmodded Wii's, Hardmodded Wii's etc...
Password = NOT-A-PIRATE (This is the password for any downloaded files)
Softmoding can brick your wii, this is very highly unlikely. Accept this fact or stop now.
It works with 4.3u/e/j/k as well!
Never Ever Ever Update Your Wii From Nintendo
Here is a video of some of the cool things you can do once you have hacked your wii!
Sometimes the video gets a bit blurry and distorts a bit but that is because of my bad camera...Sorry about that :(
So if you want to start softmodding your wii, then lets gets started!