I have no idea of what my phone is up to, but the syncing interval of facebook, Fox to Phone etc is really random, sometimes its instant, sometimes it takes up to 30 minutes to get the data, especially Fox to Phone. Facebook is usualy 0-10 min.
But there seem to be some global sync, since if im expecting one thing from both of these, they will sync at the same time.

Any idea of whats causing this?