> It seems to work for me:
>
> % macruby -e 'p MACRUBY_VERSION, MACRUBY_REVISION'
> "0.7"
> "svn revision 4566 from http://svn.macosforge.org/repository/ruby/MacRuby/branches/0.7"

Same Here

> % macruby -e 'p NSArray.array'
> []
>

This also work for me here... so the behaviour is only in macirb.

> % macruby -e 'p NSArray.new'
> []
>