Font Awesome is a very cool icon library based on CSS. The coderwall icon is still missing. Please upvote this request for our very own coderwall icon:
why treat logos as a font when they can have so much detail? Not to mention it can be a pain to get the coloring just right. So if you want to have vector based logos, you should try webicons... and yes they have coderwall.
I think both libraries have their pros and cons. So why not have the coderwall logo in both?