> And lastly / most importantly, I need a camera to be ready to go as soon as I turn it on, I don't have time to wait for a full OS to boot up. Standby mode cou

> And lastly / most importantly, I need a camera to be ready to go as soon as I turn it on, I don't have time to wait for a full OS to boot up. Standby mode could mitigate that but see previous concerns about battery life. Sony's Alpha series all run Linux, with standby.