Apologies in advance if I am missing something obvious but what about
a variation on what the Teck Chia, the Newsfeed RSS developer
suggested in Marshall's article about the take down. (http://
"One option may be to publish only a user's own items in a feed,
perhaps folding in the updates of friends who have added the app as
well and specifically opted-in."
Create a new privacy setting in Facebook that allows read permission
to the world, open to crawlers, open to non-facebook members,
essentially removing all privacy controls. Anyone that sets their
updates to this setting explicitly allows their updates to be shared
with the world. If any of their friends wish to export their newsfeed,
only those that are publishing under this new global read permissible
setting would be republished into formats that travel outside the
reach of a Facebook login.