As you have heard that @ E3, there was some freakin' cool Dreamcast demos, but Sega made thoses who saw them to sign a Non-Disclosure Agreement (NDA), so they couldn't say anything...until now. Now that E3 has been awhile, the NDA has expired!! So check out these demos. These demos push graphics @ VooDoo2 level, and it only using 50% of Dreamcast's power (I think that's right). Well enjoy.
I'd like Seganet for the pictures.
Particle Demo
Wood Demo
Mountain Demo
Fruit and Lance Demo
Texture room and Globe demo
Duck Demo