I know the OP was interested in unix tools, but I've been wondering could you build a lightweight IDE or dev toolset in chrome itself? It looks like action.io and cloud9 have been some nice browser based tools, but what about building something using google native client that runs locally in chrome?
This. I have been considering trying but I have no experience with such tools so I think the task would be a little bit beyond me. I can't see a reason why Cloud9 couldn't make an offline version for Chrome, minus a few features.
