I just plugged it into my laptop. and continued doing other things while waiting it mounted. I finished what I was doing, went to open it.. and it's not mounted. Off. Go to unplug it... and it's burning hot. Get it unplugged, pull the card out of the reader, it's hot too. cools down fast, 'cause it has so little mass, and the reader cools down too eventually.
Will need to stick it into another reader and see if the card has survived. And then bitch to kingston.