Hi orda,
I don't see scrambls as other than a software solution in the consumer market for the foreseeable future.
The point about scrambls as I see it is that it protects private information against the prying eyes of social media service providers.
I don't know much about the demand for this kind of service, or what kind of business model Wave is considering.
These uncertainties are one thing; but the company which provides this service will surely make an enemy of social media companies. It undermines their business model which is to sell information about their customers private lives to third parties.
In the trust universe, the sort of folks whom Wave might like to engage in its authentication model are none other than ... social media companies.
So, like WXP, there's a conflict between Wave's different businesses.