Enhancement on nested forms: send params as array

I was looking at this post on Rails Forum:
http://railsforum.com/viewtopic.php?id=28447

And tried to create something more simple. The best I came was to rename the text_field's name property, so my "task" partial was:

<%= f.hidden_field :id, :name => 'project[tasks_attributes][][id]' %>
<%= f.label :name %>
<%= f.text_field :name, :size => 15, :name => 'project[tasks_attributes][][name]' %>

It works as a charm. On older versions of Rails, if I named an input like 'project[][name]' the result would be a little strange, but right now it sends an array of hashes, as one would expect.

I uploaded the example code to my github: http://github.com/mauricioszabo/Nested-Forms-example. I think that it would make more sense to generate HTML like:

  <input id="project_tasks_attributes_0_name" name="project[tasks_attributes][][name]" size="15" type="text" />

Than to generate

  <input id="project_tasks_attributes_0_name" name="project[tasks_attributes][0][name]" size="15" type="text" />

Because it have the same functionality, clutters less the code, it's more flexible to adapt (I just need to generate a static for the text_field, don't need to create a "fake unique ID"), and, right now, it doesn't need any changes on the model part, just on the Form Helper.