When superfluid helium-4 was discovered in 1937, though a Nobel Prize was awarded in 1996 for the discovery of the superfluidity of helium-3 by Lee, Richardson and Osheroff, later in 2003 Anthony Legget was awarded a Nobel Prize for his research into superfluidity of helium 3 and 4.
Superfluidity has yet to really find a use in the same way super conductivity has. Partially due to the fact that there are no high temperature superfluids which limits where and how they can be used. Although recently it has been used in the spectroscopic technique known as Superfluid Helium Droplet Spectroscopy, where the lack of friction in the fluid allows liquid molecules of another material to behave like a gas and be observed.