> One nice aspectis that users are very familiar with
> seeing URLs these days so it probably wouldn;t even rasie any 
> eyebrows.

Err ... I would argue to the contrary. I do not think that any Windows
user could easily get used to

	/C/Windows/Fonts/Arial.ttf

It just looks wrong (and cygwin drives me regularly crazy with it). But
a bit of UI support could probably solve this problem.

Cheers,
  - Andreas