The idea is to provide a specific option for full Ubuntu install for removable media (pendrive or portable hard drives).

- The difference from the current "USB Startup Disk" is that it should be a full install with full set of features (kernel upgrades, multiple user accounts, private folder, GDM customization...). No persistence file will be needed for this kind of install, so full space of this drives can be used.

- The difference from the current "Full install" in a drive partition is that it should provide a hardware checking on every boot process (as it's done today in LiveCD or LiveUSB) to ensure the system can work in different hardware configurations (after all, it's a removable media!).

The focus of this new install option is having a full featured & hardware agnostic Ubuntu system in a pendrive instead of a LiveUSB that in practice is more oriented to a later full install on internal Hard Drives.

As big size removable drives are getting more popular and more affordable this can be very useful for everybody to keep a full system in their pocket...