There used to be a tool tip for each entry in the projects list that showed the path to the file. It's missing from Komodo10. It's helpful when working on a project present in multiple branches so I can quickly open the one I want.
That looks like a regression. We didn't remove that on purpose as far as I know. Can you file a bug report?
Thanks for reporting @Gewurtzraminer.
Did you file a bug? If you did, please link it here for other users that might come across the issue.