Merb 1.0 Final was announced at RubyConf yesterday. This is a major milestone for Merb, and a big step for the community. Congratulations to all the Merb contributors who put so much time and effort into this project!
You can get the new install on RubyForge at http://rubyforge.org/projects/merb/, or directly from the Merb project gem server:
gem install merb-source http://edge.merbivore.com