Yes I thought about a Shadow phone a while back. Probably the easiest way to do it is provide a mobile Android or Linux distro with all the garbage removed, a few useful things added (including the wallet), along with instructions for rooting a phone and a list of the phones it will work on. Then somebody else can go into the business of providing the prepared phones for those who don't want to do it themselves.

Hey does anybody think there would be a market for an anonymous shipping service using Shadow? You send me Shadow and the package information, I send you a .PDF of a FedEx or UPS airbill that I paid for. That way neither the shipping company nor the recipient has any link to the person who actually shipped the package, providing it was dropped in a box or something similarly anonymous. Of course they would have a link to me, but I can prove I had nothing to do with the contents of the package, because I didn't.