With no fanfare whatsoever, the last Steve's Ice Cream location has changed its name to Sprinkles Ice Cream. The store was at the east end of the Quincy Market building. I don't know exactly when the change happened -- some time in the last two or three months.
(A brief history for people who don't know what I'm talking about: Steve's started in the early 1970s as a famous ice cream parlor in Davis Square, and originated the concept of "mix-ins". Its founder, Steve Herrell, sold it, then a few years later started a competitor, Herrell's Ice Cream, which is still in business. Meanwhile, Steve's became first a local and then a national chain, but then declined and gradually lost all of its stores. Quincy Market was the last holdout.)