I’m super-duper excited to announce that Marked version 1.2 is now in the Mac App Store. It’s a rewrite from the ground up… same great flavor, all new file watching mechanism. It uses Spotlight to track changes now, which is far more stable and adept at handling things like name changes and deletions of open files. The only catch is that you have to have Spotlight indexing turned on and available in the folder where your file is (i.e. not set to private in Spotlight settings).
This is a companion discussion topic for the original entry at https://brettterpstra.com/2011/08/18/marked-1-2-is-out