The latest beta of the Ruby in Steel IDE has added debugging support. Nice.
Oh, \<a href="http://www.knowing.net/ct.ashx?id=9c88dc07-b246-4a68-871a-e950800d3420&url=http%3a%2f%2fwww.caliban.org%2fruby%2fruby-amazon.shtml"" target=_blank rel="noopener noreferrer">Ruby/Amazon is a cool library to access Amazon Web Services from Ruby. Easy to use.