Why do Facebook updates only appear after the lifestream has been open for a couple minutes?

Why do Facebook updates only appear after the lifestream has been open for a couple minutes? Then I have to refresh for those updates to snap in to the right chronological order. Why aren't the updates present in the stream when I load the page, like recent Twitter and Plurk updates? This behavior is inconsistent and slightly annoying. I like to load up the page, take a quick look, then close it to go do something else or leave my desk. I would prefer the updates to be there already. Right now it's faster to load Facebook separately, check both tabs, and close both. I like SocialThing's goal of streamlining social networking, however it only seems to work if I want to stay chained to an open browser all day.
Thanks,
Joe