I for one is very interested in development on a mobile device.
You say how can construct 3 run on mobile and not implode on itself after 20 events. You should probably give mobile devices more credit then this.
Just remember the games you are designing can be exported to mobile. That statement is almost like saying, don't bother designing a mobile game if you are using a PC to designing a 20+ event game.
I'd also like to point out that you can definitely connect a mouse and keyboard to a tablet as well a phone simply by using a OTG cable or Bluetooth! There are also devices like the "Superbook" which will make you mobile device run much like a chrome book or laptop using just your phone/tablet.
Also note that while a device maybe 6", a lot of these devices also run at 1080p resolution or even 2k res.
Plus the layout for mobile seems very sleek and by no means is anything hard to read. Add your mouse and keyboard and you got a nice setup to develop on the go.