After having finished Mifare ultralight support (and being able to read out a champions league ticket from last year), I've now implemented Mifare Classic support (i.e. Mifare 1k/4k) for librfid. Authentication and reading seems to work, I haven't looked into write/inc/dec support yet.
It seems like librfid is doing quite fine at the moment, I'll continue working on the ePassport related libmrtd tomorrow. So I hope there will be another interesting announcement tomorrow ;)