Susan McCaw, the U.S. ambassador to Austria and wife of wireless entrepreneur Craig McCaw said this week she will resign from her post by the end of the year.

Susan McCaw told President Bush, Secretary of State Condoleezza Rice and the Austrian government about her decision to leave and that it was for personal reasons, according to a press release.

"She would like to end her assignment as ambassador to Austria toward the end of this year," the release said. "The exact date of her departure has not yet been determined."

McCaw, who will have served for about two years by year's end, described her time in Austria as "remarkable and rewarding," and that it was also "a great honor to serve as the president's representative to Austria, this wonderful and dynamic country."

This report in an Austrian paper has a slideshow of McCaw photos, including one that pictures Susan McCaw standing next to Craig along with their three young children. There's also a story here (in German).

Craig McCaw is the chairman and founder of Clearwire; he also founded McCaw Cellular Communications, which later became AT&T Wireless before it was purchased by Cingular (now AT&T).