For anyone not following the discussion on the rails dev mailing list, you’ll need to upgrade to Rake 0.7.0 to use any of the standard ‘rake’ commands from now on. An error message that you might get without upgrading, for example, would be:

[duane@mail1 socialconference]$ rake -T
  (in /home/www/socialconference)
  rake aborted!
  undefined method `namespace’ for main:Object
  ./Rakefile:10

So go on and ’sudo gem update rake’ or whatever it is you do to upgrade your gems under your environment and get those namespaces in to rake!