Occasionally our tweet-count won't show up and links to bit.ly will be wrong (http://bit.ly instead of the full url ie http://bit.ly/xSjs etc). This only happens sporadically, then we get the count and correct links back.
I emailed bit.ly and discovered we've been hitting our API limit. They say this is most usually caused by scripts which create the links on page-load. They sent a link to their best practices doc here: http://code.google.com/p/bitly-api/wiki/ApiBestPractices
We don't really get enough traffic to hit the API limit through volume of people retweeting, so I suspect it's that on-page-load thing. Do you think there's a quick way to change up your plugin so it's not creating the bit.ly links each page-load? We're using the template function to render the buttons.
Thanks so much for your help!