Deletion of X Sharp

Comment: a lot of sound and noise but not a lot of attention from anyone who isn't involved with the project.  How can a neutral encyclopaedic article be written without sources from those who are not a part of the "Cosmos Team"?  Does not meet 
Stance: delete
Cited policy: Wikipedia:Notability (WP:GNG)

Comment: thrilled to know the thing exists. Does not have  from independent sources. Wholly sourced from "Cosmos team", who seemingly swooped into this discussion perform damage control. Quick scan leaves me w/ impression eligible for #G11. To quote from company rep above, ''"We put a lot of effort on write this page in the hope too to get more interest on Cosmos and X# itself"'' Reassurances from the people who stand to benefit from the article staying in terms of free advertising fail to reassure me that this is anything but blatant advertising
Stance: delete
Cited policy: Wikipedia:Reliable sources (WP:RS||WP:CSD)