Chrome OS supports "Lucid Sleep", which is a mode of allowing the system to carry out various tasks while the system is in a low-power mode or even suspended, and similar to Microsoft InstantGo. This feature, which allows for tasks like checking of new emails or instant messages while the system is suspended, is being worked on for (hopeful) eventual upstreaming into the mainline Linux kernel...
May 1, 2015
Lucid Sleep Support Is Being Worked On For The Upstream Linux Kernel
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