Ooh, I forgot! And whenever you enter a town/route/city/underwater or whatever, the box that the name is displayed in changes, depending on the location!
More stuff: R/S/E tilesets hold up 512 tiles and can accommodate up to 512 blocks as well (512 == 0x1FF by the way).
Just wondering, is there more overworld palettes? And I knew about the box thing with routes showing like a wooden drop down. More blocks = more block edits = better maps. ^_^ I'm liking the sound of this already. It just sounds so much more powerful than Fire Red.
And a lot of room for new indoor tilesets interests me and sounds amazing. Now I'm really wishing I didn't have to leave for work now. I just want to try this stuff out, haha.