Thousands of words have been written about the handshake seen around the world.
The fact of the matter is that it does not amount to much. Both George W. Bush and Barack H. Obama have basically followed the same policies toward Cuba, even if #44 introduced some cosmetic changes that do not amount to a hill of beans.
Both Dubbya and Big Ears are certified professional haters of Cuba. The Cuba Revolution snatched the most important real estate that the Yankee imperialists "owned" in the Caribbean.
Barack Obama offered hope and he delivered nothing. Raul Castro would be very stupid if he trusts that kind of person.
As long as the imperialists continue the genocidal Cuba embargo, correctly described inside the island as a blockade, there will not be good relations between the two close neighbors on the Florida straits.
The USA is the aggressor and Cuba is the aggrieved party, and neither Barack Obama nor John Kerry are really interested in negotiations on what is important.