VMTN ( Old news )
You can spend countless hours installing application server or Oracle db trials and then, on completion, trying to extricate all the client tools, config file modification and registry entries that stubbornly refuse to go away and make your Windows install _slow_ to a crawl.
You can spend more countless hours debating the merits and dependency resolution of distro packaging system x.
You can spend more time migrating all these packages from your aging desktop to your brand new laptop (or give up because you've decided to change OS's and it's hopeless).
You can do all that. Or, you can just download a file. When you're done, you delete the file. When you buy a new laptop, you move the file.
VMTN has arrived.
I will definitely be demo'ing Spikesource via VMNT, if/when I have a chance to look it over
Update: Typos fixed thanks to Dossy.