True, Peter Schiff could be a great supporter! The harder thing would be to make him understand how reliable bitcoins are.
And I wouldn't be much surprised if he just fails to understand it. Take for example the Mises institute. As far as I know, they haven't yet published anything on bitcoins, although bitcoin is practically a grass-root manifestation of everything they defend in terms of money. That's just because they don't get the fact that particular numbers may be a scarce commodity themselves, and not only a representation of something else. So they keep asking "but it's not backed by anything?", without realizing that gold itself is not backed by anything either.
Anyway, all I'm saying is that sometimes it's hard to convince non-geek gold-worshipers of the advantages of bitcoins.