I have a messenger bag from the firm which I use from time-to-time and every time I do, people stop me to say how much they loved Kozmo and of course point how dumb it was that they could order a Ben & Jerry's for $3 at 2 in the morning.
So ,of course, the model was fatally flawed, but for the average consumer who used Kozmo back in the day, they loved it. And so there is some brand value and a ton of PR that come with the name that someone could exploit.
Let's hope the biz model is just a bit better this time :)