FEATURE: shortcut for setting key equal to content

[silveltman]

I like this practive very much:

  <h1 data-rosey={content.heading}>
    {content.heading}
  </h1>

Give me te following benefits:

• Never think about key names
• Never duplicates, since the key name directly represents the content

I would love to see a feature for this! :) So we could do this:

  <h1 data-rosey>
    {content.heading}
  </h1>

or even better:

  <h1 rosey>
    {content.heading}
  </h1>

Would love to hear your thoughts on this and any potential problems I'm missing