One of the developers of FastClick.js here. We made this thing because we thought that the problem deserved a thin compatibility layer as a solution, rather than forcing developers to rewrite their code to use a different kind of button all over the place (then rewriting it again when the devices change their behaviour).

The code is in production use on the FT web app, which is deployed across iOS devices, Android (both Chrome and the Android browser), Firefox (in test), Blackberry (both Playbook and phone) and Windows (IE10). We've fixed a bunch of bugs since the initial release and we should be putting the new code on GitHub in a few days (http://github.com/ftlabs).

Feel free to post questions about FastClick on Stackoverflow if you have any problems... I'm monitoring it for mentions of FastClick and will answer most of the time.