open a selected file in finder within a new tmux window within an iTerm2 (termception).. dump this into an automator doc and save it as an app:

termception.scpt

set filename to POSIX path of input
set cmd to "cd `dirname " & filename & "`; vim " & filename

tell application "iTerm"
	tell the current window
		# Uncomment the next line if you want to create a new iTerm tab instead.
		#create tab with default profile
		tell the current session
			tell application "iTerm" to activate
			delay 1
			# Create a new tmux window
			tell application "System Events" to keystroke "t" using command down
			delay 1
			# Execute our command
			write text cmd
		end tell
	end tell
end tell

this makes some assumptions of your setup with iterm2 and tmux. i'll eventually have it detect existing tmux sessions and if non exists will just open a regular ole iterm2 tab instead of a new tmux window using my cmd+t keybinding.