Here's one I would find useful, and I'd like to hear if others might like this as well:
In the field, I use my laptop for immediate edits (on deadline, etc.) but often come back to my desktop to do a secondary edit days later (usually for stock, etc.) Wouldn't it be great if all the IPTC Stationery Pad info, Keywords, even Replacement Codes, were all stored in some online spot so that when you fire up PM on another machine, all your workflow settings come along with you, no matter what device you are editing on. Perhaps this would need a log-on feature, or work with DropBox, or in the Mac world, somehow sync with iCloud. The files are pretty small I believe, (correct me if I'm wrong) but I think it'd be a great and a pretty unique feature of Photo Mechanic.
So in addition to "Load..." and "Save..." perhaps you could have a more universal "Sync..." button.
Just a thought.
Cheers!
- Ed.