Did you find a solution to this? I just need the like button too and am having the same issue. gwtfb seems overkill for one button.
I'm trying to use the 'html5' source generated from this page http://developers.facebook.com/docs/reference/plugins/like/ -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
