I’m at F8 and was pumped to hear the announcement for like buttons extending outside of Facebook and the Open Graph initiative. As Zuckerberg said, the “default is now social.”
One thing to note is that Facebook’s default like-button code won’t work on WordPress as it does not account for dynaimcally generated pages (e.g. a blog). However, I found a version that works.
Download the Like Button plugin here.
Update: if you are wondering about whether like buttons will replace the older “share buttons”, the answer is YES