New Relic has working code for this breakout on their GitHub page, if anyone is interested in using it. Perhaps it could be added to the EI repos? The NewRelic code uses the SPI interface.
In this video, I demonstrate reading an RFID card with one Imp, and then sending that information to a Lala audio reference design that has a prerecorded message.
https://www.youtube.com/watch?v=IqUOmVqGNsQ
I was having some fun making robot voices with Audacity.