Comment 3 for bug 379592

PPAs have a "non-virtual" flag which means they build packages without a virtualization environment, as for Ubuntu builds. I think, but am not sure, that these PPAs also pull from the distro buildd pool. This setup is very fragile (a PPA package could do nasty things) and distro buildds are scarce, so access to PPAs with this flag is severly controlled.

We need a proper virtualization solution before we can offer PPA access for armel to all Launchpad users at large.