I keep some bookmarks on the start screen and when I shrink the tile to smallest size to be able to keep it tidy I notice the label I gave the bookmark has disappeared. The "IE" symbol replaces it but I can no longer tell which is which. A small label of two or three letters would suffice. I was keeping different files on the desktop that contained frequently visited sites but it takes more steps to get them out and once out I'm unable to get back to the open file to get the next one. I seem to have to get back in to the desktop from the start screen all over again. I may be missing something there, but having the smallest tiles for bookmarks right on the start screen would be more convenient I think.
EDIT: I think I figured out what Microsofts solution is, just hover the cursor over each tile until it shows the label. This will work, just gotta get used to it.
FWIW: I'm going for the Nokia Lumia 929 when its released soon on Verizon and it will be my first windows phone. In preparation for this I put a windows phone theme on my android phone so I could get used to the UI . well, on the theme I was allowed to put labels on the small tiles. Worked great, so naturally I thought the dev got this from the actual windows interface. Ha,ha. I'm in transition mode, but I'm a quick study(usually)