Christ almighty, if you need more evidence for my long held contention that "cloud computing" is simply SSH for PHBs and marketers, then Steve Rubel's post about, well, Chrome OS and PC operating systems running on USB memory sticks should convince you. Now, here is a small problem for the "just boot your own OS on someone else's hardware" thing. Most people won't allow it. I know that a lot of people who administer public computer terminals (in libraries, universities etc.) will turn off booting anything other than the OS that's allowed. The Internet may be all peace and love, but for those administering public terminals, they believe in lockdown not love. 
If you listen to TechCrunch and all the other tech blog tards, you'd think that cloud computing was something new and magical. But, as I've said, SSH is all the "cloud computing" I need. I can fire up a Terminal on any machine, anywhere in the world and log into the Linux box under my desk. I can manipulate files, download stuff, make notes (Vim), read e-mail (mutt), read USENET (slrn) and do all the other things people fart about with on computers. I can keep my files in sync using rsync and transfer files with scp/sftp. Tell me why I need to trust Google or Microsoft or Apple MobileMe with a metric fuckload of my data. Or put it on a USB stick which, as our dear government have shown repeatedly, have a habit of wandering off or falling out of people's pockets in pub car parks or being left on trains by drunken soldiers. 
Don't worry, you will be getting on the fantasy cloud of tech pundits. Just like last time with the thin-client JavaOS. We'll all be cloud based. I hear Apple is working real hard on a browser-based version of Final Cut. All that HTML 5 stuff they are doing is going to make it rawk! They are going to be replacing their 8-core Mac Pro desktop machines with cloud terminals that'll poo out lots of clouds and rainbows and unicorns all over you. And cloud-based versions of Eclipse, the GNU C compiler and Team Fortress 2 are on their way. And don't you worry about underground train tunnels, the vast swathes of the countryside that is stuck on poorly performing GPRS signals or international roaming charges that will make it so it'll cost £1.50 to download your JavaScript word processor from the cloud, even though we are supposedly in a Common Market called the EU (seriously: if you are an Orange UK customer, if you go to France and roam on Orange France, it costs £4 per megabyte even though unlimited 3G packages are now extremely cheap in the UK - the same is true for most other EU countries). Cloud computing will solve everything! As Steve Rubel says: grab your Photoshop and mock up lots of browser-based apps. The browser is going to "strip out" the operating system real soon now! 
So, from all the cloud hype, what is actually real? People whose only computing needs are the basic functions of Microsoft Works may find that Google Docs may be a decent replacement for their current desktop office software. And, erm, Gmail sucks less than Outlook. And, erm, Xen-based virtualization is making VPS hosting cheaper and more flexible. Passable web apps and cheap virtualization have, to the mind of any sane person, sweet fuck all to do with one another, but both are apparently hyper-revolutionizing the information super-byways and will "strip out" your need for an operating system on your PC. And I've got a machine here that will make your car run on tap water. Order now. 
