Files with the same name in a TextMate project

Answer 1

This is a start: http://snipplr.com/view/11490/textmate-command-snippet--show-document-path-in-window-title/

Answer 2

I think vasi's solution is the closest you can get to what you want (+1 for him) I don't think that the bundle can be automatically ran on open, and also, the title changes back to default when switching between tabs, so even if it could, it would be useless.

I've searched for a defaults key (like the one from Finder, *FXShowPosixPathInTitle editable with

defaults write com.apple.finder _FXShowPosixPathInTitle -bool YES)

but there isn't any. Here's the list of available keys for Textmate.

Maybe you can write feature request somewhere as it is very useful and not so hard to impletement.