How true, actually. I recently bought an ASUS 1225B. Windows 7 runs incredibly slow on it.
I didn't even try to install OS X, but I did install Linux Mint Debian, which runs very nicely.
But, for instance I can't watch Silverlight streamings. The necessary plug in is not made by Microsoft, it is made by mono and it is very outdated.
Edit: actually this could be a good explanation why Moonlight doesn't work: http://ubuntuforums....623&postcount=7