[clhodapp]

That's true, but we're getting close: Linux ostensibly supports power-toggling and hot plugging CPUs, memory, and disks at this point. I think it's more focused on allowing VMs to be resized and replacing bad components in servers, but I know that some systems are already using some of this tech to improve power management and support better hibernation. I think there's still quite a ways to go to make graphical sessions robust enough to be suspended and then brought up on different hardware (I don't think things are presently set up to allow for changes to the pci controller and X sessions expect things to be pretty static, as evidenced by the hoops you need to jump through for switchable graphics), but we may get there if a major company ever decides to take an interest.

[dpark]

It’s probably solvable with enough resources. I don’t honestly know why anyone would fund this, though. The “let me plug my phone into random machines” crowd is pretty small. People who want roaming state are probably better served in general by cloud apps, which don’t require that the user carry a dedicated device to boot with.