My choice would be something between the two options.
My Gemini is both a mini laptop and my primary (and only) phone. Hence, I find it essential that I don't miss any phone call or message while I'm working under Linux. On the other side, I'm planning of getting myself a Bluetooth mouse, and I'd like to use it under Linux and to have a GUI which resembles a desktop one as much as possible.
If really I'd have to choose between the two options, then I'd choose the "Linux phone" one, but ideally it would be nice to have these various configurations as options in a preferences tool, so that I could choose to have the mobile features on and a mouse-driven GUI. Or, if I'm working during night time or a flight, to temporarily disable the calls and messages support and enable the sleep mode when the lid is closed, to maximize the battery duration, even if a reboot will be required after every configuration change.
Varti