Yeah, the restriction is that the area within the mid-level map of the square you've selected as the play area, there's at least one biome that isn't ocean or mountain. Loosely, this means you can play everywhere but the middle of the ocean or world map squares completely surrounded by mountains. The mountain restriction might be loosened later, but you might be required to explore the area first -- Right now, I don't think the named mountain peaks should be outpostable without having somebody gain the summit in adv mode, for instance. Just seems wrong to me, though restrictions usually end up being lifted after I put them in. Depends.
Rewalling creates neither a pristine tile nor a wall building. It creates a not-so-pristine tile. The overhead from a building was too much data/mess, but I wanted to store a little more information than a map tile could provide about the construction and a few other flags.
More money won't make me work faster, since I'm already working as fast as I can, but money allows me to work in the first place, since I need food and so on. That said, more money might enhance the quality of my work, since it would improve my mood.
I think earlier posts of dev_notes.txt are on the wiki somewhere. I don't have a page link though. Edit: here
On the release date, it's not like it won't seem rushed either though -- there will still be a lot of problems when you get your hands on it. There will be several iterations of the game in close succession after the I put it up most likely. The main problem is that it is missing many of the features you might want, like caravans and water. Hopefully I can take care of wagons today.
[ August 01, 2007: Message edited by: Toady One ]