Morgan Tsvangirai, the leader of the Movement for Democratic Change (MDC) has been sworn in as Zimbabwe's PM by Robert Mugabe. According to Al Jazeera the stalemate over control of ministries and the security forces was settled by an agreement which saw Mugabe and Tsvangirai name co-ministers to the Home Affairs ministry and the creation of a new National Security Council.
It seems to me that whoever is the nominal co-head of the Home Affairs ministry, factional loyalties will determine how effective Tsvangirai and his colleagues will be. Mugabe was kept in power by the loyalty of the security forces and the war of independence veterans. Tsvangirai's demand that all political detainees be freed before Wednesday's ceremony was ignored by Mugabe's government and it's hard to think that this is not an indication of how things will run.
On the other hand, some recent reports indicate that even among the security personnel, the collapse of the Zimbabwean economy and the subsequent food crisis (and now the health crisis following the outbreak of cholera) is having a toll. That loyalty may be fragmenting.
Here's hoping that Mugabe's support is splintering enough to allow Tsvangirai the space to get some things done but I'm not holding my breath.