Rentahamster
Rodent Whores
Water gets replenished by rain, but you will use it all up if you consume water faster than it rains.No they don't But they last quite a while, you'll eventually have to re-place everything though or someone else in the region needs to start tapping into their water reserves!
Is it possible to have a city provide industrial for another city in a region? I see how it will let you do it for resources, but it looks like no matter what I'm stuck with having a ton of pollution spewing factories and stuff?
Yes, it works like SimCity 4 in that regard. However, unlike SC4, pollution from one city can blow into another. Be mindful of the wind direction.