It might be with online IDEs or a rented EC2 instance and chrombook as terminal to access it. Please share your configuration for such.
Previously I used the ssh found in crosh (ALT+SHIFT+T > ssh ...) but the crosh ssh freezes if you lose your connection. The crosh will freeze for ~5 minutes before you can close your now worthless terminal tab. This happens a lot if you are on 3G and makes ssh impossible to use. My wireless cuts out enough to make this too frustrating to use.
Now I use secure shell from Google (https://chrome.google.com/webstore/search/secure%20shell). This app is fantastic. It is very fast and you can kill it whenever you please.
I have a rented linode which I ssh into and hack away in vim. Best development experience I have had.
I mostly use my chromebook at home not mobile. My experience is that since I am happy in the terminal I don't need a full powered PC for development. The chromebook is perfect for snatching an hour here and an hour there for development, since I have a day job and a family. My 17" quad-core laptop gets very little use these days.
I love the keyboard on my chromebook, although I miss the 'end' key almost every day.
I only test my web-app regularly in chrome. So I tend to build up safari and firefox css bugs over time and have to fix them in lumps.
That is a nifty and fun ssh client, but my poor chromebook struggled to render fast enough. Quite cool for a slightly more powerful PC though.
If I was expecting to be away from wifi I would probably not use a chromebook for development. The pain is too high, but with a good internet connection it is great.
So, development works pretty well if you have a good wifi connection.
Its just matter that we need to have good ssh client, where vim will work asyn and will push only for saves. I guess this way, development will be good in bit bad net-connections as well.
Unfortunately for a mobile ssh client it doesn't appear to be available for any mobile OSes (yet). I would be delighted to see a nacl version of this turn up for chrome. An android client is on the horizon.
I just need a browser- which chromebook has and a shell - just two things i need for everyday development.
I also found this two things that might be useful to you:
Just something to consider as far as editors go.
From there I can ssh out to one of my dev servers and hack away. It is fast, has 256 color support, and ssh key support. Everything I need.