New Remote Desktop client could almost make me a Continuum believer
One of Windows 10 Mobile's truly distinctive and unusual features is Continuum. If you hook a phone up to a screen and, optionally, a mouse and keyboard, you can run desktop-style apps, albeit still powered by the phone. The connection to the screen and other peripherals can be wireless, using Miracast and Bluetooth, or wired, using the USB 3 Display Dock.
While the novelty of this is appealing, I'm not altogether sure that it's ever going to be a major selling point. There are a couple of reasons: first, it requires quite specific hardware (although Miracast with Bluetooth is quite widely available); second, it requires Universal Windows Apps that specifically enable the ability to run on a large screen.