[6] In August 2011, the government of Acting Prime Minister Sam Abal (standing in for Somare while the latter was hospitalised for a serious heart condition) was brought down by a parliamentary motion, and Kidu lost office.

[9] At the same time, she announced her intention to sit as the opposition leader in parliament, in order to hold the Peter O'Neill-led government to account.

[13][14] Kidu chose not to re-contest her seat of Moresby-South in the 2012 general election and retired from politics at the end of her third term in July 2012.

[15] She is also a member of the High-Level Task Force for the International Conference on Population and Development (ICPD)[16] and sits on the board of the Pacific Institute of Public Policy and the Nationwide Microbank.

[18] In February 2009, she was made a knight of the Légion d'honneur by France, for "her dedication to helping women, young girls, children, the physically and mentally impaired and her commitment to fighting discrimination".

[21] In 2007, the magazine Islands Business named her "Pacific Person of the Year", in recognition of her efforts towards poverty alleviation, against domestic violence and child abuse, against HIV and AIDS and in favour of women's empowerment.