Chat Heads, the Facebook Home chat feature, will be coming to the iOS Facebook app this week, and is probably getting pushed to the store now, Facebook’s Home team said today on stage at the AllThingsD Dive Into Mobile Event. The Chat Heads implementation in the Facebook iOS app will have to live exclusively within the app itself, because of limitations placed on how developers can access iOS itself. The Chat Head bubbles will appear through the Facebook app itself, though, instead of keeping messages relegated just to the messages tab. That means you’ll be able to jump in and out of conversations while browsing profiles, your news feed, pages and events. It’s both a good way to provide users with an improved messaging experience, and a good way to get more of the Facebook Home experience in front of iOS users.