Linked by Thom Holwerda on Mon 30th Nov 2009 23:45 UTC
Oracle and SUN Yesterday (today if you're in the US), Sun released the latest version of its virtualisation solution, VirtualBox 3.1. Among speed improvements and other smaller features, the biggest news is that Virtualox 3.1 introduces something called teleportation: you can move running VMs between machines - servers or clients, different architectures, different host operating systems, it doesn't matter to VirtualBox. Coincidentally, this reminded me of an idea I once had about moving running applications between machines.
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Exactly. Think about this one, for instance.

I watch my television series on two computers - I have an HTPC in my bedroom as well as my living room. They both draw from the same storage space. OFten, however, I won't be able to finish watching an episode on f. ex. my bedroom HTPC before I go to sleep - so I pause. Wouldn't it be handy if instead of having to remember where I left off and scrub until that point on the other computer, I could just drag the video player to the other machine, preserving its state?

It sounds very handy to me, but it would probably require a heck of a lot of work, and I'm not sure if it is a desirable enough a feature.

You want X11 with XMove. Start an X app on PC1. Then XMove it to PC2 and carry on. Then XMove it to PC3. And then back again.

Granted, the actual execution of the app always happens on PC1. But the display, which is all you really need to worry about, occurs on PC2, then PC, etc.

All it takes is a network connection. Works quite nicely. And if you add in NX for better network response, it can even work across DSL and dial-up links (although not for full-motion video at those speeds).

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