Is there any reason why all manual downloads of 'Spark 8.x-1.x-dev' on http://drupal.org/node/1795058 don't work? Well, there is the Git option, correct! It's just that not everyone wants to make use of Git when at the same time a simple click could do the download job as well.
Especially people coming from sparkdrupal.com will not be very fond of this occurence. Anyhow, thanks for mending this!