Well, i saw that rail system from my tower, and decided to take it one day. No offense, but it was really slow. I crept along at half a block per second. Then, i finally hit the powered rails, and i sped along. Perhaps some of the powered rails were griefed or werent powered? Anyway, i think the idea is sound, and even suggested it myself one time when i was new here, but it was shot down, everyone said "thats what spawns are for hurr durr" I think its a good idea, but i think in v4 you should make roads. I think roads look better, and dont require carts. I would make them out of sandstone, like in morningwood. And there could be road signs, pointing people to towns and settlements (which arent towns yet, but hae a lot of people, trust me, there were a lot in v2.) and shops. Also, you could charge people to build their shops right next to the road. (maybe). anyway, just some suggestions. Yes, rail systems are a good idea.