I'm starting a company and I'm telling you about it here. From everything I hear it's going to take a lot. There are 75,000 Salvadorans in Houston, Texas. They consume more than the average amount of telephony products, but they over pay for it. They use prepaid phone cards and prepaid cell phones.
I can use Skype and other VOIP technologies to call El Salvador for free as much as I want. I want to extend this ability to the 75,000 in El Salvador. I can make money and they can save money. It's a good niche.