I absolutely love having my dev work on my phone, being able to hack away or do code review for 5 minutes wherever is incredible.
At home using a chrome-cast and have it on a big screen.
It would be nice to have a window manager I suppose - but i'll probably end up in a full screen terminal anywya.
When mobile the biggest problem for me is just plain old screen size - I'm tempted to get a cheap Chinese tablet and use it as a remote screen somehow - leaving my phone in my pocket.