Still think this makes no sense at all, though I'm happy to be proved wrong. I think the endgame for personal devices is making the electronics invisibly small, which requires more integration, not less.
I don't see why my glasses and wrist computing or whatever all need separate powerful discrete components and radios when they should be parts of a modular whole.
It'd be great to have a modular smartphone that sat in my pocket automatically recharging based on movement being converted by my clothing, powering a glasses or contacts based display with say a wrist band or something that tracked hand/finger movements in 3d and allowed me to interact with the 'alternate reality' UI I saw through the display.
It doesn't really seem that far away, now.