Chile and Ecuador would be the countries with the best platform for that kind of thing. Check startupchile.org and Ecuador's city of knowledge website http://www.yachay.gob.ec
Uruguay for some reason is home to one of the more active development communities. But as far as visas I think you need one of those retirement visas or something.
Panama might be the easiest to get into, register companies etc. althought that technically is Central America. All in all, even in places like Venezuela with its crazy economy but that happens to be extremely favorable for service export, you will find good opportunities for startups due to extreme low cost of living, good university networks and general lack of competition and innovation. Internet speed leave a lot to be desired but it is workable. Electricity prices in some of this countries is way cheaper so that lends itself well to datacenters. Of course, those savings will need to cover stuff like private security, which is kind of a necessity.
Uruguay for some reason is home to one of the more active development communities. But as far as visas I think you need one of those retirement visas or something.
Panama might be the easiest to get into, register companies etc. althought that technically is Central America. All in all, even in places like Venezuela with its crazy economy but that happens to be extremely favorable for service export, you will find good opportunities for startups due to extreme low cost of living, good university networks and general lack of competition and innovation. Internet speed leave a lot to be desired but it is workable. Electricity prices in some of this countries is way cheaper so that lends itself well to datacenters. Of course, those savings will need to cover stuff like private security, which is kind of a necessity.