@amigadave
I think you are wrong. In terms of brand wareness of the name Amiga, in the UK at least, is well known by most people with knowledge of a computer over the age of 20. Maybe only as a retro platform but I would still say it is well known. Certainly more than the underwhelming <1% figure you qoute.
Linux, I am sure, is not something almost everyone is aware of. Its pretty irrelevant to the masses who all use windows, perhaps you should be the one getting more vitamin B?