I'm constantly amazed at how much I can achieve with the little device in my hand. I've said it before: my phone is pretty much my PC – Primary Computer.
The bulk of my coding happens on the Mac because the screen is larger and it's easier to navigate but, with the right software, there's almost nothing I can't do on my phone. And do it anywhere I want, as long as I have a connection.
This morning I have squashed the bugs in the garden, added a new "nice to have" feature, and even started refactoring the site footer. All from my phone.