Democracy in blossom!
Don't believe it for a minute.
Mugabe has been bullied into opening Parliament but he and Zanu PF remain the same thugs that the always were.
We have seen this before. Mugabe appears to concede so as to give Mbeki grounds to claim that things are improving and everybody should relax and lighten up on the sanctions. It either works or it doesn't. Either way, Mugabe and Zanu PF revert to type.
Just remember who still controls the instruments of force in the realm.
As to letting the NGOs operate again. Watch for Zanu PF thugs to try to control who gets the relief help. Access to food is a political weapon in Zimbabwe.