I just wish they would have read over that goodbye note, or at least spell checked it.
http://www.paulgraham.com/die.html
AppJet did a good job following that advice IMO, but Heroku takes the cake. They didn't just change direction. They kept the old product alive, too.
Edit: I was wrong. AppJet kept some of their old stuff around, too! I can't wait to check it out. http://appjet.com/dev-archive.html
Either way, the right thing to do is to give the investors the option to cash out.
I just wish they would have read over that goodbye note, or at least spell checked it.