Nintendo DSi for language learning

http://www.ndnlanguage.com/Story_Our.html

One of the topics that I am curious about is whether technology can help save many Indigenous languages that are being lost. This company has developed language tools to do just that.  Grandmother and grandson worked together to build the Cherokee language module.  I would be interested to see how effective this tool is in teaching language and what people think of it (elders, youth, educators, etc.).  It looks like this product is purchased in bundles and includes Nintendo DSi cartridges, the software and training.   The product seems very pricey but I really have little to compare it to.