I was at the event too in t NYC with Ceasar. from ZuneInsider. I thought i was was the only one there from the Zunerama. Anyway jaxim did a nice review already so i wont have to write to much. Once we were there we Cesar only had the Flash zunes and not the ZUNE 80!!!.
We where all disappointed by that. I cam from NJ just to test out the Zune 80. Ceasar said his friend had it that wasnt at the event. But, 2 hours later his friend came by and gave him his Zune 80 back with the Batter dead. Good thing I had had my charge and cord with me. We wasn't able to find a outlet but i just used Ceasar laptop to charge the Zune 80.

Zune4/8
This Zunes are very cool!! The Gui is very Fast, the Zune pad is very responsive. The screen is jsut gorgous, and i know alot of people was company thats its .2 inch smaller then the ipod nano. I thought that I wouldn't like the black boarder that the Zune 4/8 has. But it was weird Becuse, once you srat playing with the Zune you dont even notice the black boarder. The screen is very sharp and clear.
Zune 80
WOW, the GUI is very fast the and Zune pad works outstanding as well. The new firmware is very nice, you will notive that the album art is just a little bigger on the new firmware. It doesnt have gaps in between the albums like our ZUNE 30 has now. Also, when you are in the albums section and you click on a album, you can see the album arts of the albums on the top of screen of and the Zune 30 you would only see the name of the album on the top of screen.
The screen was bright, but I didn't like that i was able to see the pixels more. Still has 65k colors too.
ZMP
The new ZMP is very NICE, Simple, and has a nice split screen when you are looking for albums that you have and albums on the podcast. Personally I think they did a really nice job with the the ZMP and i cant wait to check it out on Nov 13

Overall I think the new Zunes are kick ass. I dont know if they are as durable as the first Zunes. Because the red flash zune has a glossy finsh, that shows your finger prints. Also put glass screen you have to clean more to keep it clean.