So clamshell mode is made for using it in a 'docking' type situation? Plug in keyboard, mouse and monitor and it won't go into sleep mode when you close it?
Any way to have this happen without plugging a keyboard or mouse in? The only desktop in my house is a HTPC, and my laptop stays with me 99% of the time on a small table by the couch so I can use it while watching tv, etc... Sometimes I want to download torrents but turn the screen off and close the lid but still keep the computer on. This is extremely easy to do in Windows in the power settings but I've not seen similar options in OS X.
Since I'm probably going to run Windows on it 90% of the time anyways this may be a moot point but I'm still curious.