from the BBC...
So far, Mr Tsvangirai's Movement for Democratic Change and Mr Mugabe's Zanu-PF party have failed to reach a deal to resolve Zimbabwe's post-election crisis.
Leaders from the Southern African Development Community failed to help them end a deadlock at their summit in Johannesburg over the weekend.
'Theory and practice'
"If President Mugabe proceeds to convene parliament, appoint a new cabinet, it means that... he may have abandoned the basis for the talks," Mr Tsvangirai said in the Kenyan capital, Nairobi.
It managed to allay some of our fears, but strengthened some of our positions
MDC leader Morgan Tsvangirai
Kenyan lessons for Zimbabwe crisis
He said that talks mediator South African President Thabo Mbeki would have to deal with any violation of the negotiations' Memorandum of Understanding. ...