We'll have this soon. Yet, we cannot say with precision because the Secure Element we are acquiring from Gemalto, the one responsible for safeguarding the seed cryptografically on the hardware wallet, is still under evaluation so we may get the best choice. Our current estimates range from 29-59 Euros, depending on the best piece of hardware for the project.
Again, thanks for commenting and for the interest.
Cheers,
EDUARDO CAPANEMA
RE: BOLSHOI App Map - Wireframing BOLSHOI comprehensive IOTA Wallet - Part II