formatHelper.coffee

Ember.Handlebars.helper 'format', (body) ->
  body = Handlebars.Utils.escapeExpression(body)
  body = body.replace(/\n\r?/g, '<br>')
  new Handlebars.SafeString(body)

# Usage: {{format stringWithNewLines}}

thanks!

May want to update your gist

Ember.Handlebars.helper 'format', (body) ->
  body = Ember.Handlebars.Utils.escapeExpression(body)
  body = body.replace(/\n\r?/g, '<br>')
  new Ember.Handlebars.SafeString(body)

# Usage: {{format stringWithNewLines}}

see http://guides.emberjs.com/v1.10.0/templates/writing-helpers/

With the new Ember using HTMLBars it needs to change. :]