Livedata tunable queries

One of the highlights of the 1.3 release announcement is that “Livedata nog supports tunable queries”. I did some searching but didn’t find much … Anyone knows what this means?

After watching @zoltan’s talk from last night at #meteornight, I think it refers to the last three options for Collection#find, which are listed here:

Basically it lets you avoid using the oplog when you don’t want to.