Working example, see: http://www.samharris.org/site/full_text/faith-no-more/
<li><g:plusone size="medium" href="http://www.samharris.org/site/full_text/faith-no-more/"></g:plusone></li>
<!-- Place this tag after the last plusone tag -->
This displays fine in most browsers, but on the iPhone, the Plus One button doesn't display at all (see bottom of page).
There are no JS errors, and the code is correct according to Google's docs.
Ideas?
The button now works on iPhone and Android browsers. See this announcement for more details: https://plus.google.com/111499908439497508351/posts/LWZuyUKFSao