The first terabyte SD card will soon be sold by Sandisk. They were apparently first to 512GB too (don't, PNY's is cheaper), but no-one cared because that's not as arbitrarily interesting a number. No release date, no price. It'll be about $700.
Hitachi sold the world's first one terabyte hard disk drive in 2007, according to Wikipedia, one sixth of which would fit in a terabyte, assuming you're just counting the plain text of articles.
I wish there was an SD card format in the exact shape of tiny 3&half-inch floppy disks, complete with a sliding metal hatch over the connectors and a free bootsector virus