The RTM is supposed to be there too (if you read further, you'll see a
link to both beta 2 and RTM). Both links however seem to result in a
500.
One way to get started for now would probably be to just download some
Atlas example that someone has published, which may include the
scripts/binaries. For eaxmple, on
my site there are a few Atlas examples for download which include both (RTM version).