Wearable Computers - Small Form Factor Redux

Was a bit surprised to find the definition of wearable computers so narrow.

The wearable computer I always wanted would have no intrinsic display or I/O. Have commented on these small forms for various purposes before.
http://albertputnam.blogspot.com/2013/11/minimal-portable-pc-usb3-hdmi-110g.html
It would have a battery, lots of compute, memory and storage, and would have IO ports like USB and HDMI. It would not be wireless locally, but would use a PAN (like Ethernet or USB).
Bluetooth would be okay... though it bleeds to WAN if intrinsic. External connect would be WiFi or 4G (again best if not intrinsic but via IO), but a direct Ethernet nearby is optimal. 802.3af Power over Ethernet would be preffered charging, but also via USB. Ideally wearable solar or energy harvesting would be integrated or integrable.

Do not want to be locked to any specific display or data entry method. Want I/O to be whatever is at hand. Maybe UI can be Oculus Rift ? ... for another post? And WAN disconnect to be guaranteed by using/executing a physical/visible/tangible mechanism.

[Update 140707: Interesting offering ECS LIVA . Available Newegg . Small and battery powerable.
Out of Stock Newegg with reviews].