Comment 5 for bug 329630

I'm sorry Fabio, I don't understand your suggestion.

PPA supports i386,amd64 and lpia. A uploader, who constructed the source package, decided in which architecture he wants to build a it (all, any, specific ones) and Launchpad does exactly what it asked to and shows the binaries in the PPA page. All debian/ubuntu tools (and users, for that matter) know that architecture-independent binaries can be installed in any platform, including the ones that are not directly supported in PPAs.

That understood, what kind of UI change you are suggestion us to do ?