It'll only appear in the activity feed page and the activity feed widget on your profile.
Hmmm. I don't think I'll use it much then. I'd really prefer it showed up in the message center as well, that way I can make sure everyone gets a chance to see it without it getting lost in the feed or they just don't check the feed. Especially for stuff like livestream announcements and what not.
Just the activity feed for me.