Why not use Eclim[1] instead, since it allows you to embed an actual vim editor into Eclipse if desired and get all of Vim's features?
[1]: http://eclim.org
[1]: http://eclim.org
With Eclim you get all of vim, as you say, but you lose a bit of the native eclipse editor functionality.
With Vrapper you get all of eclipse, and a subset of the core vim commands. It's not vim, but you get to keep all of the features of the native eclipse editor.