It's a hoax. Anyone who claims there is any easy way to install and use Linux on a USB drive is very inexperienced with Linux and booting USB drives and the driver issues involved. We've been working on this type of thing for over two years. The best alternative: download portable VirtualBox (torrent file); download a favorite Linux distro; run the .iso on the VirtualBox and install and the virtual drive. And even this method has the disadvantage of leaving registry entries on the host which may mean one can't even get the distro to boot. One may ask the LH team if they thoroughly read the information and successfully installed and ran a Linux version with persistence. If so, which one. I can only think of four distros which offer persistence as a feature. Ubuntu has not been one of them since way back with version 6. But you can try with all your extra time. When VDI images for VirtualBox are already made at VeeDeeEyes, I can't see any reason to not use a portable VirtualBox—nice speed. Good luck.