You can't go from 6 decades of isolation to thinking US style Capitalism isn't going to fuck up the place if you try to do it overnight.
Uhmm, Cuba was only isolated by the United States for the last 6 decades. Other countries have been doing business with them for a very long time.
Back in 2006 I was sent to Guantanamo Bay for a week-long contract. As I was walking into the Navy Exchange to grab some beer, my blackberry rang, I picked it up and answered, and everyone around me looked at me like I was from Mars. It dawned on me at that point that I probably had the only working cell phone on base, since as a Canadian (with a Canadian service contract), my phone had no trouble roaming onto the Cuban cell network.
Yeah, it was only GPRS, but for text email on a Blackberry it was still better than two rocks to bang together.