The following list shows all the Vimrails’s features:

Multiplatform
Vimrails is available for Mac OS X, GNU/Linux & Windows

Site-based navigation
Easy navigation of Rails directory structure. Integrated file tree and many commands for easy jumping between files

Enhanced syntax highlighting
from_has_and_belogns_to_many to distance_of_time_in_words. it’s here

Autocompletion
Syntax based completion, making it easy to complete such long methods names

Snippets
Textmate-like snippets expansion

Integrated Subversion
Support lots of things like viewing the version control system log, integrated vim diff, etc

Database access
Project database settings automagically extracted from config/database.yml. So, you can use features like table name completion and commands like create or select

Tabs
Tabs support for multiple file editing. Safari style tab navigation for Mac users

Line numbering
Line numbering and easy jumping between lines

Text search in entire project
Nice grep integration to search along a project

Collapsing text blocks
Nicely folds classes and methods for easy navigation. It is posible to fold the blocks into a single

Scripts wrappers
Interface to scripts in the scripts directory of the Rails application. Most have extra features beyond calling the script