i thought it was, but now that i look again i don't think it is. there was a story about papermill on theverge [1] the other day that heavily referenced marco's post, and i assumed that the point of all the marco references was that it was the endorsed app, but reading the article again they don't actually make that claim.

[1] http://www.theverge.com/2012/3/23/2897938/papermill-is-the-f...