The front page link on ESPN in the Spotlight section says
"JJ Redick is lighting up the Orlando league... for what its worth so did Travis Diener last summer"
http://sports.espn.go.com/nba/news/story?page=orlandosummerleaguesday2&lpos=spotlight&lid=tab2pos2 (http://sports.espn.go.com/nba/news/story?page=orlandosummerleaguesday2&lpos=spotlight&lid=tab2pos2)
The article emphasizes that success in this league doesn't guarantee playing time... and uses Diener as the example.