What stuff are you referring to? I have listed a number of proposed features. It's also not necessary for ALL of them to be incorporated into one device. It's just my humble opinion that all of the proposed features are useful, especially for travelers, security conscious people and the people living in 3rd world countries.
For example, if adopting encryption-on-the fly is too costly, this feature can be omitted. In this specific case, the mobile phone will target travelers and people residing in 3rd world countries, omitting the ones who would buy it for the security reasons.
I don't have a technical base to make it. I'm innovator, I'm not an owner or executive manager of Iphone or Nokia. Thus only in a joint venture it could become possible.