Applescript functions to set up iTerm and start working on a rails project.

.bashrc

alias sequin='cd $DEV/sequin;rvm use 1.9.2-p290@sequin'

rails_shells.scpt

on make_session(namestr, col, project, command)
	tell application "iTerm"
		tell the last terminal
			set mysession to (make new session at the end of sessions)
			tell mysession
				set name to namestr
				set background color to col
				exec command "/bin/bash"
				write text project
				write text command
			end tell
		end tell
	end tell
end make_session

on make_rails_terminal(project)
	tell application "iTerm"
		activate
		set myterm to (make new terminal)
	end tell
	
	make_session("server", "0.0 0.0 0.3", project, "thin start")
	make_session("console", "0.3 0.0 0.0", project, "rails console")
	make_session("test", "0.2 0.2 0.2", project, "")
	make_session("shell", "0.2 0.0 0.2", project, "mate .")
	make_session("log", "0.2 0.2 0.0", project, "tail -f log/development.log")
	
end make_rails_terminal

sequin.scpt

property mrt : load script POSIX file ((the POSIX path of (path to home folder)) & "Library/Application Support/iTerm/include/rails_shells.scpt")

tell mrt
	make_rails_terminal("sequin")
end tell

Add items to the Scripts menu in iTerm that will set up shells and stuff for a rails project. Change sequin to the name of your rails project.
In ~/Library/Application\ Support/iTerm make the directories: include and Scripts.
move rails_shells.scpt into include
move sequin.scpt into Scripts
Now when you next open iTerm the script sequin will appear in the menu.

To make it work, you have to have set up a gemset and an alias in your bashrc that will cd to the project directory and set the environment to your gemset as in the gist .bashrc above.

Alternatively, you could change directory and set the gemset explicitly in the applescript. I just like to have that alias available anyway.