The Gaza deal is best described by Marc Lynch:
The Israeli government will significantly ease the blockade of Gaza in exchange for American support for a whitewash of the investigation of the flotilla incident.
So the Mavi Marmara achieved its goal substantially - at the expense of any justice for the attack itself. Steve Hynd adds:
By forcing this small retreat, future Israeli and U.S. retreats will come easier and faster. Thus, although it sticks in my craw to countenance a lack of legal accountability for the Flotilla assault, I'll reluctantly take the product, if that leads to a wall being tore down, instead.
Andrew Sprung sees more signs of gradual progress in this new era of American diplomacy.