I still struggle with the form validation and form helpers in Play 2.0. I have this login screen that I use together with the Twitter Bootstrap. So my login form looks like this
I'm in the same battle to show the errors :) for now I'm using :
@elements.errors.mkString(", ")
That would be hidden if there is no error, take a look on this : http://twitter.github.com/bootstrap/components.html#labels-badges
but still looking for a way to translate "Required" to portuguese.