Hi Stefano, yes running from a USB key works the same in the v4 beta as in previous versions, the instructions above are still valid.

re:
> anything else I need to look out for?

If the USB key is pretty slow it can be a bit hiccupy when it needs to load a DLL or something from it if you run it directly off of the USB drive. But the hiccup will only happen once per DLL so after a couple of hiccups it will smooth out. If you run into that you might want to copy it over to anywhere on the hard drive and run it from there.

You can also just install the same MoI license on multiple machines just as long as only one of the installations is actively launched and running at a time. To do that use the same installer and same license key on each one and close MoI (exit the running program, not uninstall) on one machine before launching it on another.

- Michael