jducoeur

Interesting. That's apparently the newest part of it -- the "like" buttons have apparently been around for a bit, but this version of "repost" was just added last week. And it sounds like it's not working as described:

If the original entry author has used this new <lj-like> method of including a repost button, reposting that entry will display in your latest entries as a post by the user who originally posted the entry.

Sounds like it may not be ready for prime time yet...