Economic systems - Cuba allows small and medium-sized private businesses

Is this the beginning of the end for the command economy in Cuba?

In response to last month's protests, private firms will be allowed up to 100 employees, and a number of other measures, including a removal of some trade restrictions, mean the economy is opening up.

It will be interesting to see what this means for the economy: are workers going to want to be state employees, and have their wages determined by the state, or work in the private sector, where theory would suggest that pay will reflect their productivity?