I knew there would be a few quirks. I recently upgraded my Mac OS to SL 10.6.3. When using Illustrator (CS4), saved files as .EPS, do not have the appropriate Illustrator icon on the file. When I click on them to open, instead of opening in Illustrator, the file open in "Preview".
NOTE: ".AI" files saved, do not have the correct AI icon either, but do open in Illustrator.
What can I do to rectify this situation?
Use Get Info on the EPS file. In the dialog go to the Use this application to open this type of file and choose AI. Then say yes to all files of this type. It won't give the file an AI icon and all EPS files (no matter the origin) will open in AI by default. And you really should go to 10.6.8