Irrespective of the OS and Hardware it all boils down to useability. This means applications to handle multimedia. Unfortunately RISCOS does not have these.
I use my 17" laptop for music, movies, photo editing, full (multimedia) internet web browing all wirelessly. My server with a printer and tons of harddisc space (movies + photos) sits in the dark in a corner at the back of my house!
My laptop runs PCLOS configured to look and behave like RISCOS!