For those of you who want homebrew in 16:9 on 4.0 update

It's even easier. Install this WAD (it is a forwarder to HBC) to access the Hombrew Channel in 16:9 mode.

I can confirm this works like a charm! Kudos to JoostinOnline.

 

I can also confirm that the HBC Forwarder JoostinOnline made/or adapted for vWii works. I ended up dragging HBC to the last page and putting the forwarder channel where HBC was.

 

The problem is because HBC's current title ID begins with an L I believe, which is the letter of some VC games and Nintendo changed the code to make those VC games display properly. Any channel beginning with a letter that isn't used for VC games should work fine. HBC will get an update to fix it, but there's some other stuff that needs done too.

EDIT: Small app by tueidj to fix the issue right now: http://www.tueidj.net/aspect_fix.zip

 

Now that tueidj has posted his fix, I'm interested in booting certain games with the 4:3 aspect ratio format, as it is the only way I've found for keeping the proper aspect ratio when playing GCN games using Devolution on the Wii U GamePad.

So I've modified JoostinOnline's original forwarder. Channel ID now is LHBC. HBC boots in a 4:3 aspect ratio format.
http://uploaded.net/file/lb15fqow

Though I've realized this is not needed until tueidj releases a permanent fix, as the actual fix has to be applied everytime you boot the HBC from the system menu.

I think I'll stick to JoostinOnline's previous forwarder until tueidj releases a proper fix or a new HBC version.

BR.