This isn't so much a development idea as it is a marketing suggestion. I was reading through the help and support forum when it occured to me that opus would be really great running on a demo editing machine at NAB. I don't know if it would be possible to pull that off but I think a lot of content creation folks would be really jazzed seeing how an experienced opus user could save time and effort by using opus instead of the built-in explorer. It really is a tool I wouldn't be without anymore, for multiple reasons. I'm thinking ideal folks to pitch this to would be high-profile companies whose software require a lot of file manipulation - adobe photoshop and after effects, editing hardware / software like Harris VelocityHD or Matrox Axio, compositors like digital fusion or (autodesk) discreet combustion, etc.
Anyway, just a quickie thought I thought I'd throw out there.