There are a few rare success stories. I think in the link above the poster tried 20 times to get it unsecured before he was successful (I think it is msg. #1). But the frontline CSRs will tell you "No" nearly everytime. I had found a second link by searching "unsecured" and "orchard" that mentions that their card went unsecured after 18 months or so (seems like the post was from this past Sept.).
a great choice for a secured card that offers graduation is boa.
I agree with score_building completely. I would definitely recommend BOA over Orchard secured.