http://homepage.mac.com/nanigashi/programing/formatednumberstring.html[numberFormatter setFormat:@"#,###"]; これを入れないと，うまく動作しなかった．

objective-c client libraryのドキュメント少なすぎ．． とりあえず，youtubeの検索はここを参考にすればいい．http://everburning.com/news/mytube-searching-for-fun-and-profit/ http://everburning.com/news/mytube-now-with-moving-images/