Here are a few quick comments, off the top of my head:
- I love, love, breadcrumbs. For me, breadcrumbs are a must-have, and I'm glad to see them in this mockup.
- I think we should probably try to continue positioning the toolbar at the bottom. Beyond that, I like the general concept of the icons. Do icons really need big solid borders around them a la iRex? Probably not, I think.
Beyond the UI, I'd like to address a lower-level question. Currrently the ContentLister administers all functions necessary to run the iLiad, and in addition it lists and opens files.
It seems to me that it might make more sense to keep the parts of the ContentLister that do system administration, and then write (or modify) an existing file manager/browser (like Nautilus) to act as the file browser on top. It might be easier to simply cut out the file-browsing code in the ContentLister and then add a new program separately... what do you think?
It also raises the interesting question, is there a decent file manager out there that could be modified to suit our needs?