Free market is possible - the problem is that it is tool and not ideology. For it to work you need several conditions:

1. Relatively low barrier of entry 2. Non essential goods 3. Comoditization/semi comoditization of the products 4. Price, demand and supply elasticity

The android phone/ tablet marked in the developing world right now is perfect example. Cheap PCs in the 80s/90s.

Sadly in the developed world the business models with carrier subsidization is quite evil and hostile towards the consumers. We should really make the wireless and wired assholes dumb pipes.