You ever fall in love with a product, tell all your friends about it, and then disappeared?

I really liked Wunderlist (task management application). It had a super clean UX, funny tone and felt like it should ve blown up. Well, in the end it didn't survive (I think some internal political war ruined it), but at least now there like 20 new ones in the market to take their space.

Have you ever had a favorite product that totally flopped or shut down? Why do you think it didn t make it?