"The threaded replies really would bring twitter in closer proximity to the FF experience, but I do wonder how listing out the RTs will impact the Twitter economy. I tend not to like the echo chamber that endless RTing creates. Will this ease that or make it worse? With lists already in place, do we really need to RT? Why, for instance, *ever* RT Mashable or Scoble? Stick them in a list, run the list feed to a widget, all done." - Kathy Fitch