If I had a Nexus One, I'd be asking how to add Sense to it (I know, a custom ROM)
Each to their own. My only complaints with Sense are the buttons at the bottom - instead of Apps - Phone - Add Widget, I'd like Quick Launch - Apps - Phone, where quick launch brings up a list like the Apps button, but only shows the last, say, 16 apps you used, like an extended long-press-home-button list. Why do we need an Add Widget button? There's already long-press on the screen and the menu button. Design By Marketing methinks, showing off their widgets was deemed more important than functionality.
Also, looking at the video, the way the apps fly in is pretty, I'd like that!