From the last few blog entries it's pretty clear that there will be both zeppelins and steamships in the game. As an avid fan of steam locomotives and railroads, I hope these will be included as well. They were, after all, one of the most widespread and recognizable uses of steam power in real-world history.
Trains with guns on them, operated by citizens under the influence of hidden geometers. I was sold on the idea well before this. Incidentally... Jim Starluck, previously of CRFH?
The more transportation options, the merrier. I'd love to see trains, boats, airships, landships, etc.