Hi,
I've had this problem where the plist disappears and it's really frustrating.
After a fresh install, Textmate starts just fine, but if I close it and try to open it again later, the plist is completely missing.
I used the troubleshooting technique on the bottom of this page: http://wiki.macromates.com/Troubleshooting/101
To get this result:
Mac-Pro:~ myuser$ /Applications/TextMate.app/Contents/MacOS/TextMate 2012-03-12 10:21:02.633 TextMate[22543:407] No Info.plist file in application bundle or no NSPrincipalClass in the Info.plist file, exiting
I'm running Lion 10.7.3.
What is happening here?