Shantanu Oak - FOSS / SMS application

Shantanu Oak has in detail explained about using yubsub to create SMS applications compare to traditional costly SMS applications with 4 digit shortcodes and other information. It's an interesting experiment to work with and being in the FOSS model, i believe this has some serious implications on traditional pricy applications. Seems interesting and great! but again, with all the free software application, this also has a some serious implications in terms of trustability.