Having not disassembled my PE personally, I can only speak from experience with modern electronics manufacturing. Integrated devices are generally wave-soldered or attached with conductive glue. Removal and replacement is generally well beyond virtually every enthusiast. I have actually replaced wave soldered devices with a tiny soldering tip, but only under extreme circumstances -- I wouldn't try it again.
That said, it would still be good to know what parts are inside the units and what each part actually DOES.
It may be possible for a user to re-solder a power connector if it comes loose, or repair something simple, but as tablets get better and cheaper, it seems to me that purchasing parts and attempting to repair their units will be attractive to very few eDGe owners.
It might be good to encourage eDGe owners to keep their dead units to send to others with the skills to put the parts to use.
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