Analysis
John Simpson
World Affairs Editor, BBC News, Cairo
It seems pretty clear Mr Mubarak's offer to stand down simply won't be enough to satisfy large sections of the opposition: Leaders are saying they will refuse to negotiate a political solution with him.
If the president had made this offer just a few days ago, the reaction might have been rather different, but after the shootings last Friday the mood is much fiercer.
People are saying that if a week of demonstrations has pushed the president this far then there's every incentive to keep up the pressure on him.
President Mubarak's offer to stand down will cause shock waves right across the Middle East. Until recently the regime in Egypt seemed pretty much rock solid.
Now autocratic governments in North Africa right through to Yemen, Syria and maybe even Saudi Arabia will be looking for ways to buy off discontent at home.