Why Unity is a win
The introduction of Unity as a desktop environment is a great win for Ubuntu and the Linux Desktop.
Unlike gnome, which is designed by a committe of techies, Unity is designed by a small group of designers and techies. And unlike gnome, the goal is not to just offer a “free” desktop (that may or may not offer a good user experience); the goal of unity is to offer a great user experience (that happens to be free).
So even if 10.04 unity sucks (I think it will rock, but hypothetically speaking ….) in the long it can only get better, and therefor Unity will be awesome.