I would advise to use fingerprints instead of only the keyid. It shows that the owner of the business card understood how gpg works and also allows to easily create a web of trust between Fedora Contributors on conferences. In the company I work, we also have the fingerprints printed on our business cards. The recipients either know what gpg is or find it interesting, when I explain them, for what they are useful. Afaik it is also a goal of Fedora to promote security. Also the fingerprints have a fixed length afaik, therefore they should not randomly fall off the business card.
--Till 16:23, 9 August 2008 (UTC)
I would prefer an international format of the phone numbers on the business cards, e.g. +1 919 424-0063 (I am not sure what the x 5103066 means, can you maybe explain this?) --Till 16:23, 9 August 2008 (UTC)