Have’t got a clue, mate - I just got inspired by a cover story on a computer mag to start looking into virtualisation on USB drives and iPods and found something which works really well. I think that one of the alternatives, Moka5, is based on VMWare but, since I’m just remembering something parrot-fashion, don’t trust me on that. What I do know for sure is that, on my 4GB Sandisk USB I’ve now got all of the apps I’m ever likely to really need when I’m out and about and don’t have to carry a laptop around if I know there’s likely to be a PC anywhere in the vicinity. Admittedly, I’ve only given it a workout plugged into machines with a minimum of 2GB RAM but I’m pretty confident that it would cut the mustard on something less beefy. I’m seriously looking into working out how I can build a pocket-sized flash array with about a squillion gig of effective RAM to see if I can haul my entire software suite around with me for super-fast working wherever and whatever; it would be a freelancer’s dream come true to be able to handle work at the drop of a hat without having to haul a laptop about the globe. There’s probably some simple technical reason why I won’t be able to do this but I’m keeping my fingers crossed that it’s possible.