When Google switched to a single universal icon a few weeks back they created problems, the icons on my bookmarks toolbar are now … (wait for it) … IDENTICAL. The last two on the right are Google Analytics and Google Webmaster Central, so I have no idea which is which. Compare that to the Google Calendar, Google Reader, and Google Docs icons on the left which are different.
Yes I do use Google Reader, Google Calendar, and Google Docs after having tried many other options IMHO they are the best products in their category.
UPDATE
so some folks are reporting seeing a new icon in the wild, I still have the old one but hopefully it’s a caching data center thing. yay google