Man, the Internets, and specifically Web 2.0, REALLY did a number on the desktop application space, innit?
Today I found out not only Clementine, the music player, has been dead for years (forked into Strawberry, tho) but also Amarok seems to be gone for a couple years.
A while back I struggled to find something as simple as an RSS reader that would sit on the systray and notify me (thank you QuiteRSS)
And today, same deal looking for a calendar app. Ended up paying EUR10 for Rainlendar