I would severely miss the history completion. I can't count how many times I type !vi to return to the last file I was editing while goofing around in between editing sessions, or !scp to re-upload a fixed package. I understand the need for simplicity, but hitting the up arrow an undefined number of times until I see the command I need seems less efficient.
Other than that fish looks really polished and I plan on devoting a few days to it to give it a fair shake.
Other than that fish looks really polished and I plan on devoting a few days to it to give it a fair shake.