OT: Windows Vista security 'rendered useless' by researchers

[Josh Mellicker]

Two security researchers have developed a new technique that  
essentially bypasses all of the memory protection safeguards in the  
Windows Vista operating system, an advance that many in the security  
community say will have far-reaching implications not only for  
Microsoft, but also on how the entire technology industry thinks about  
attacks.

http://searchsecurity.techtarget.com/news/article/0,289142,sid14_gci1324395,00.html

If this is indeed 'unfixable', some organizations concerned about  
these attacks might consider a migration to OS X?