from Steve:

I fixed the bug that caused the shareware wad to crash in 0.4, so I'm releasing a version that includes only this fix. The homebrew browser can't put out the newest WiiDoom unless the shareware wad (which is packaged with it) works, so this was a high priority for me. Teknecal just confirmed that it's working, so he's putting it out in the next day or so.

Most people won't need to download this new update, unless they wan't to increase the download count via HBB have the latest version. :)