sonata-project/SonataBlockBundle — pull request #125 by eriwin (2014-02-19 14:37:22+00:00)
Title: Removed public="false" from the service block example

Since this service must be public otherwise you can't use it when you would like to render it like this:
$blockHelper = $this->get('sonata.block.templating.helper');

$block = $blockHelper->render(array(
'type' => 'sonata.block.service.text',
'settings' => array(
'content' => 'My content'
)
)
);