The NexDock, a laptop she'll that depends on Windows 10 Continuum to work, has met its $300,000 goal on Indiegogo. It is a dock that uses a Windows 10 Mobile phone plugged in for processing and storage.
Microsoft patent shows low power Wi-Fi tethering in store
Using a smartphone to dish out Wi-Fi for other devices can drain the phone battery quickly. A patent by Microsoft is for "Power Saving Wi-Fi Tethering" so this might show up in Windows Phones down the road.