Well USB 2.0 is not in OSE, but USB 1.1 works. So you can print directly which is the most usefull case when you want to use vendor provided tools for cd printing or so. The addon feature is basically great to give OSE users the full functionally of the PUEL versions before. I would usually prefer to use the official repository but that way the OSE is not as crippled as before. I am a bit sad about the EFI support. It's seems it is only tested with OSX, that's absolutely great... I would like to have got sandbox for EFI testing because with >2TB hds you have to boot from EFI without an extra boot hd. Let's see what happens before, getting a board with proper EFI support or VBox with full UEFI.