i just set my power settings for computer sleep to never then display sleep to 5 minutes. this keeps my machine running with the lid closed. i have this setting for ac power only. on battery its normal settings.
Have anybody tested whether it works on OS X Lion on the mid 2012 MBA?
Cause they don't seem to work on early 2011 version of MBP.
I don't know about InsomniaX but Caffeine doesn't work when you close the lid......
i have NoSleepHelper. i just get a little Zz in the top bar, if i click it then close the lid it stays running but turns the screen off.