"That (ministerial) list is what they wish to happen. It was not agreed on. As far as we know there was no agreement on the allocation of cabinet posts and we are waiting for the mediator, Mr Mbeki, to come and resolve the impasse," he said.
"It kills the talks completely," the spokesman for the main Morgan Tsvangirai-led Movement for Democratic Change, Nelson Chamisa, told SA FM radio.
In power since Zimbabwe’s 1980 independence from Britain, Mr Mugabe’s decision, announced yesterday, to award defence, home and justice ministry portfolios to his ZANU-PF ruling party means he would retain control of the army, police and other state security apparatus.
"This flies in the face of the dialogue and an attempt by the SADC to help us out of this crisis. Clearly, it is an act in bad faith," Mr Chamisa said.
The spokesman said that the move was "arrogant, unilateral and unacceptable".
Mr Mbeki will meet with Zimbabwe’s political leaders tomorrow, his spokesman Mukoni Ratshitanga told AFP, with Mr Mugabe’s published Cabinet breakdown casting a huge shadow over planned dialogue.
"Mr Mbeki is travelling to Zimbabwe tomorrow. The allocation of the ministries and all other issues will be discussed in Harare when he meets that country’s political leaders," Mukoni Ratshitanga said today.
Mr Chamisa made a passionate appeal to Mr Mbeki and the 15-member regional bloc Southern African Development Community that appointed him to help resolve the latest crisis.
"Mr Mbeki, please help Zimbabwe. We need your help. We also need the help of and support of the SADC," Mr Chamisa added.
A government notice carried by the state-run Herald newspaper said yesterday that the veteran leader had given his ZANU-PF party 14 ministries, including control of defence, home and foreign affairs, justice, local government and the all-important state media.
According to the report, Mr Tsvangirai’s MDC gets 13 portfolios, covering portfolios such as constitutional and parliamentary affairs, economic planning and investment promotion, labour and social welfare, and sport, the arts and culture.
Mr Mutambara’s MDC would get three ministries.
Under the September 15 accord, 84-year-old Mr Mugabe remains as president while Mr Tsvangirai takes the new post of prime minister.
But efforts to form the government have become steadily more bogged down over disputes about who will control the most important ministries, with the finance brief also strongly contested.
Yesterday’s shock announcement came hours after negotiators for the three main parties in the stand-off, including ZANU-PF, urged Mr Mbeki to step in once again to resolve the deadlock over the allocation of the ministries.
Luckson Ruvire, a Zimbabwean student in Harare said: "There is no power-sharing if we are to judge by the list. It is still ZANU-PF running the government because they have all the main ministries."