> Since 99.999% of the people only ever encounter http://, ftp://, and https:// (did I forget any?), why not create a standard set of easy-to-understand icons to replace them, in cooperation with other browser makers?

For me at least it's a lot harder to memorize the meaning of a 16x16 pixel image than a four-character string.

Also, we have exactly the same problem that Google's having with this, which is that it's difficult to copy/paste, to speak nothing of entering in a url you have written down.