radrails blog より、0.7.2 リリースのアナウンスが出てます。
What's new? Mostly enhancements to the RHTML editor. Improved content assist that proposes closing tags. An outline view. A source formatter. Tab-expansion for templates. Some minor bug fixes. Of course there is always more on the way. Next on the to-do list, by popular demand, is enhancements to the CSS and JS editors, and some further refinement of the testing tools.