According to Tech Crunch, a redesign of the page layouts is at least part of what's going on. From the screen shots they show it doesn't look like anything radical but that famakes one wonder why they're having a press event if that's all there is. So maybe there's more. There have been rumors that the new Facebook phone will be revealed (doubt it) or that it has something to do with a revamped Places (seems odd since they just launched it) or Skype integration (yeah, maybe). Anyway, all will be revealed soon and we'll tell you what's happening.