I've just uploaded RMagick 2.0.0 beta5. This beta release can be built 
with the latest rev of Ruby 1.9.0.

RMagick 2.0.0 Highlights
------------------------------
o New installation uses setup.rb exclusively
o Requires Ruby 1.8.2 or later
o Requires ImageMagick 6.3.0 or later
o GraphicsMagick not supported
o New Image#destroy! method destroys individual image objects,
   making the memory available for reuse
o New Magick.trace_proc method helps monitor memory usage
o Many new methods added
o Two GraphicsMagick-only methods removed.
o Many deprecated, outdated, and mostly undocumented methods and 
constants removed.

See the Change Log for information about new features and bug fixes 
since RMagick 1.15.10.

Please read the Release Notes before downloading. Please report problems 
to the RMagick Help Forum on RubyForge: 
http://rubyforge.org/forum/?group_id=12.

This beta release is not available as a RubyGem.

RMagick 2.0.0 is available as always from RubyForge: 
http://rubyforge.org/projects/rmagick/. Please wait a few hours for the 
mirrors to catch up.

RMagick 2.0.0 is an interface to the ImageMagick (www.imagemagick.org) 
image processing library. RMagick 2.0.0 supports more than 100 image 
formats, including GIF, JPEG, and PNG, and comes with comprehensive HTML 
documentation. The RMagick home page is http://rmagick.rubyforge.org.

-- 
RMagick OS X Installer [http://rubyforge.org/projects/rmagick/]
RMagick Hints & Tips [http://rubyforge.org/forum/forum.php?forum_id=1618]
RMagick Installation FAQ [http://rmagick.rubyforge.org/install-faq.html]