I thought I was going crazy but found out that the new and useful top-bar (with G+ and Twitter etc) does only work after a long scroll. So it does not work on my site (and others that have limited page length), unless you have a very small browser window.
See http://exposedplanet.com for top bar in use, try it with small vs full-size browser window. The bar only appears on very long posts, and then only when scrolled down, which most don't do as the photos are the important part.
3 requests for the Top-Bar:
(1) Please add an option to have the bar appear automatically: for example after 2 seconds after page load, or after _any_ scroll movement or even a mouse movement. The current scroll needed to initiate the bar is too long, so it won't appear.
(2) I can only use the top bar if I use at least one other share button. I use my own (sprite/css) buttons for other sharing and do not need the other buttons. Can you make the topbar functional, even if no other services are selected? Saves a lot of scripts/load time.
(3) I don't need FB buttons, but would appreciate an option for LinkedIn and/or Reddit and/or Digg buttons for the tool bar.
Thanks for listening, cheers