Interesting article Macchiato. Reading between the lines it appears very important for Vietnam to move away from the tradditional "commodity" based robustas and stock arabicas into unique marketable varietals. However knowing the changes the country is going through at the moment I am sure the emphasise is on developments away from the agrarian sectors....even though the potential there is indeed huge. Indonesia too is struggling with overcoming the slump min prices since 2000. The good news is prices are now begining to trend upwards again. Indonesia's advantage is coffee cropping is well established through out the archipelago. Also the name recognition helps to push up prices for arabicas coming out of regions of Sumatra, Java, Sulawesi and to a lesser extent Bali.
My final comment would be this. In emerging coffee markets the importance of quality is paramount. This does not just refer to the quality of the green bean (which is indeed very important for the specialty coffee industry in the USA, Europe and Australasia...), but also to the quality of service and delivery in getting the product from the rural areas, to HCMC and then out to the rest of the world.
Anyway- good luck... the growers certainly are the ones at the bottom of the food chain and the ones that deserve a break!