That is probably a good thing. Rails is a great fit for what it does, a 2.0 danger was to do beyond its strengths. It seems to have evolved nicely. I look forward to using it.
As for the questions about the lack of "scalability" improvements, I don't really care. Its not needed for what I use it for anyway (and probably the same for most people).
As for the questions about the lack of "scalability" improvements, I don't really care. Its not needed for what I use it for anyway (and probably the same for most people).