Dropping idle connections to have security sounds like the wrong solution to me.
If someone who is not supposed to be able to use your computer has access to your shell/your computer/your phone/ipad then you'll probably have a lot of things to worry about other than the server you're on ;-) I tried mosh. Works great, tried to disconnect and it resumes the second that I re-connect my laptop, which makes me extremely happy. Performance wise I don't see any difference, maybe because I'm on a fast network. We haven't got a mobile connection to test yet... The Had to set my LANG env though. -- code ninja | tnhh.net | @huant
