This a bad news:
http://www.computerworld.com/action/article.do?command=viewArticleBasic&articleId=9119258
http://www.computerworld.com/action/article.do?command=viewArticleBasic&articleId=9119258
Time to kiss WPA goodbye and migrate to WPA2."To do this, Tews and his co-researcher Martin Beck found a way to break the Temporal Key Integrity Protocol (TKIP) key, used by WPA, in a relatively short amount of time: 12 to 15 minutes, according to Dragos Ruiu, the PacSec conference's organizer."