I have come across a service provider in South Africa that has given me great service and products, myTXT.co.za. I am integrating one of my software products with their SMS service and they have "come to the party" in every way. It started with an excellent, well priced product and continued through with fast efficient feedback, communication and technical support that exceeded my expectations. It's a very new relationship but based on my first impression it definitely looks like I'll stick with them.