Cuban-American here. Helping Castro's controlled economy before giving control of the government and said economy back to its people is unpopular. Allowing the Cuban people to communicate and band together within the country is attempted all the time by government-affiliated and independent organizations, most of which are in Miami and organized by Cuban-Americans. This seems like one of those attempts, sponsored by the USAID Office of Transition Initiatives[1]. If I were in charge of the project, I figure I'd probably also avoid giving this project a U.S. brand as to not catch the attention of Cuban censors or propagandists.
Networks are fully controlled by the Cuban government. Their "Facebook" is government built.[2] There are no social networks that are optimized for the tools (like satellite phones) they use to get around censors. At first glance, this seemed like a nice attempt at helping the Cubans get around these limitations.
[1] http://www.usaid.gov/who-we-are/organization/bureaus/bureau-... [2] http://www.huffingtonpost.com/2011/12/02/cuba-launches-faceb...