Does this only apply to cellphones which are regulated telecommunications devices? Or would it also apply to tablets, which are really personal computing devices? And if it applies to tablets, would it apply to other personal computing devices such as laptops and desktop PCs? And if so, does it only apply to encryption software sold with the device, or also to third-party supplied encryption software? And if it does apply to 3rd party software, does it only apply to commercial software, or free open source software as well? Are there 1st Amendment issues involved in regulating the distribution of free software, and if so do they apply only to compiled machine code, or to source code as well? The devil is in the details and I'm not really sure where dividing lines would be drawn.