I saw one of those devices at a local video game store. I wish I could transfer my Amiibo's data to one of those trading card Amiibos and then back to the figure Amiibo.
Amiibo figures don't seem very portable to me. Wish there were blank Amiibos figures or cards that you could save data to, in the event something happens. Misplacement, fell in toilet, someone stole it, etc.