JetBrains’s RubyMine IDE

JetBrains just released version 1 of a new Ruby and Ruby on Rails IDE called RubyMine. It features everything you’d expect in an IDE, like code completion, project navigation, HTML/CSS/JS editing, version control software (VCS) support, plus lots of Ruby and Rails-specific features. Version 1.1 of RubyMine is expected in May, with support for version 2.3 of Rails (a significant upgrade). The software is available under two licenses, one (free) for open-source projects and another commercial license ($99 US at the time of this writing).