I like the new share on Facebook button on the view page, guys. =)
I still wish that there were a nice embedding option for Facebook as well or that the 'Add to Favorites' star icon, in addition to its current function, functioned as a Facebook 'Like' button, but perhaps that's too much power for one single button|link.
I do have to admit that the word 'Facebook' looks very... different when displayed in Photosynth's fluorescent yellow link color. =)