What this means is that owners of the N8 have easy access to their files on other external drives without the need to use a PC. Users can also use the N8 to charge any devices that accepts USB charging, although I don't see any reason for doing so. Unfortunately the N8's USB OTG function does not seem to recognise any of my mouse (a VAIO wired and Logitech wireless).
My lovely VOIP Sony VAIO mouse isn't supported
The N8 had no issue recognising my four year old Samsung YP-U1Q DAP