It could be a very well done setting. I still probably won't buy it.
Why?
#1 It's apparently either technological or (more likely) magitech. I hate mixing tech and magic. I absol-frickin-lutely despise magitech. Either one is an automatic black smudge on a setting.
This isn't an absolute prohibition. I liked Shadowrun, Stephan King's Gunslinger books, and Guardians of the Flame. The simple fact that that last one made the list should give some perspective on my tolerance to mixing magic and tech.
I refuse to buy FR products because the magic level is so absurdly high. Obviously, anything with higher magic is a no sale to me.
#2 Dinosaurs. If they are prominent enough to get noteworthy mention in the PR, then they are either _not_ just in the most remote of jungles or the WotC PR person... seeking polite phrasing... just isn't doing a very good job.
Now, my wife and I were chatting as I read this thread. At first, she had the same reaction I did. As we talked more, though, she came up with a cool idea. She said it kinda sounded like the Gunslinger world and I have to agree.
IMHO, that's the best case scenario. If it pans out that way, I'll probably pick up the book. I wouldn't use it very often, but I could see it being interesting for a change of pace between serious games. There might also be some good ideas in there in a context I could be interested in.
Obviously, we don't have enough info to say one way or the other, yet. Also, I'm not saying the setting will suck. I know there are lots of people who find magitech interesting. I'm just not one of them.
I hope the setting sells well and encourages WotC and other publishers to put out more settings -- preferrably ones that I like and can raid for ideas. I'm just not hopeful at this point.