Re: So? - Addendum
adding new badly supported hardware to linux machine.
Firstly the problem you are talking about is the hardware vendor only providing support for the "most popular" OS. Ignoring that there are lots of linux people willing to code drivers for decent hardware the premise that windows remains the "most popular" OS is being undermined by MS themseleves.
Lastly there are lots of other vendors who do support linux, if your mate has bought a bit of kit that only works on windows and ignores all the other machines out there then they are not going to last very long and neither will the limited support the vendor did offer. Better to get him to get a refund as he has been gyped
Having bought kit that was windows only but then had support dropped by the OS in the past, I can tell you that windows has a far worse support history than linux even when the vendor is a fly by night.