Great debate in New York Times
And great summary of the situation:
For Prime Minister Benjamin Netanyahu of Israel, President Hosni Mubarak has been his strongest ally in the region. At the same time, Mr. Mubarak has been a firm ally of the Palestinian Authority and a staunch supporter of the stalled Israeli-Palestinian peace process. Egypt has also tried to broker reconciliation talks (so far, unsuccessfully) between Fatah, the party governing the West Bank, and Hamas, which controls Gaza.