I don't know about you, but I never had a real-life friend on Myspace or Orkut, while now a lot of them are on FB, even non-geeks. That's the fundamental differ

I don't know about you, but I never had a real-life friend on Myspace or Orkut, while now a lot of them are on FB, even non-geeks. That's the fundamental difference. To unsettle FB, something completely new and much better would need to be invented, surely not something on the level of Myspace or Orkut.