Are you talking about simulating the Wii Menu features in an homebrew app? To be honest, I also thought about that once. It's possible, but complicated.
Anyway, if you want just an System Menu replacement (but not similar to it), there is Freedom:
[
www.wiibrew.org]
EDIT: elaborating about the "it's possible" part, the biggest problem, as I see, is displaying the banners. I don't think this have been done before.
Edited 1 time(s). Last edit at 10/13/2009 12:29AM by DanielHueho.